16040520912 has 40 divisors (see below), whose sum is σ = 44625553504. Its totient is φ = 4935544704.

The previous prime is 16040520907. The next prime is 16040520973. The reversal of 16040520912 is 21902504061.

It is a super-2 number, since 2×16040520912² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16040520912.

It is a congruent number.

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, 12852358 + ... + 12853605.

Almost surely, 2^16040520912 is an apocalyptic number.

16040520912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16040520912 is an abundant number, since it is smaller than the sum of its proper divisors (28585032592).

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

16040520912 is a wasteful number, since it uses less digits than its factorization.

16040520912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25705987 (or 25705981 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 16040520912 in words is "sixteen billion, forty million, five hundred twenty thousand, nine hundred twelve".