1520612016 has 80 divisors (see below), whose sum is σ = 4897567488. Its totient is φ = 394963200.

The previous prime is 1520612003. The next prime is 1520612017. The reversal of 1520612016 is 6102160251.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1520612017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202015 + ... + 209406.

Almost surely, 2^1520612016 is an apocalyptic number.

1520612016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1520612016 is an abundant number, since it is smaller than the sum of its proper divisors (3376955472).

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

1520612016 is a wasteful number, since it uses less digits than its factorization.

1520612016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411450 (or 411444 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1520612016 is about 38995.0255289056. The cubic root of 1520612016 is about 1149.9337116170.

Adding to 1520612016 its reverse (6102160251), we get a palindrome (7622772267).

The spelling of 1520612016 in words is "one billion, five hundred twenty million, six hundred twelve thousand, sixteen".