1520116320 has 96 divisors (see below), whose sum is σ = 4878794592. Its totient is φ = 397709312.

The previous prime is 1520116313. The next prime is 1520116361. The reversal of 1520116320 is 236110251.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4437 + ... + 55316.

It is an arithmetic number, because the mean of its divisors is an integer number (50820777).

Almost surely, 2^1520116320 is an apocalyptic number.

1520116320 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 1520116320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2439397296).

1520116320 is an abundant number, since it is smaller than the sum of its proper divisors (3358678272).

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

1520116320 is a wasteful number, since it uses less digits than its factorization.

1520116320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59824 (or 59816 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1520116320 is about 38988.6691232209. The cubic root of 1520116320 is about 1149.8087445017.

Adding to 1520116320 its reverse (236110251), we get a palindrome (1756226571).

The spelling of 1520116320 in words is "one billion, five hundred twenty million, one hundred sixteen thousand, three hundred twenty".