16156648520 has 16 divisors (see below), whose sum is σ = 36352459260. Its totient is φ = 6462659392.

The previous prime is 16156648511. The next prime is 16156648561. The reversal of 16156648520 is 2584665161.

It can be written as a sum of positive squares in 2 ways, for example, as 14911828996 + 1244819524 = 122114^2 + 35282^2 .

It is a super-2 number, since 2×16156648520² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 201958067 + ... + 201958146.

Almost surely, 2^16156648520 is an apocalyptic number.

16156648520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16156648520 is an abundant number, since it is smaller than the sum of its proper divisors (20195810740).

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

16156648520 is a wasteful number, since it uses less digits than its factorization.

16156648520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403916224 (or 403916220 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 16156648520 in words is "sixteen billion, one hundred fifty-six million, six hundred forty-eight thousand, five hundred twenty".