1520016120 has 192 divisors, whose sum is σ = 5660591040. Its totient is φ = 346521600.

The previous prime is 1520016119. The next prime is 1520016163. The reversal of 1520016120 is 216100251.

1520016120 is a `hidden beast` number, since 1 + 52 + 0 + 0 + 1 + 612 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1520016093 and 1520016102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1614850 + ... + 1615790.

It is an arithmetic number, because the mean of its divisors is an integer number (29482245).

Almost surely, 2^1520016120 is an apocalyptic number.

1520016120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520016120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830295520).

1520016120 is an abundant number, since it is smaller than the sum of its proper divisors (4140574920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520016120 is a wasteful number, since it uses less digits than its factorization.

1520016120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1520016120 is about 38987.3841133257. The cubic root of 1520016120 is about 1149.7834803457.

Adding to 1520016120 its reverse (216100251), we get a palindrome (1736116371).

The spelling of 1520016120 in words is "one billion, five hundred twenty million, sixteen thousand, one hundred twenty".