16161511516160 has 96 divisors (see below), whose sum is σ = 38939069169000. Its totient is φ = 6437779537920.

The previous prime is 16161511516123. The next prime is 16161511516219. The reversal of 16161511516160 is 6161511516161.

It can be written as a sum of positive squares in 4 ways, for example, as 16130569298944 + 30942217216 = 4016288^2 + 175904^2 .

It is a super-2 number, since 2×16161511516160² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806585 + ... + 5742264.

Almost surely, 2^{16161511516160} is an apocalyptic number.

16161511516160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16161511516160 is an abundant number, since it is smaller than the sum of its proper divisors (22777557652840).

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

16161511516160 is an equidigital number, since it uses as much as digits as its factorization.

16161511516160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6549117 (or 6549097 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 41.

Subtracting from 16161511516160 its reverse (6161511516161), we obtain a palindrome (9999999999999).

The spelling of 16161511516160 in words is "sixteen trillion, one hundred sixty-one billion, five hundred eleven million, five hundred sixteen thousand, one hundred sixty".