16520234460 has 48 divisors (see below), whose sum is σ = 46609782912. Its totient is φ = 4371764800.

The previous prime is 16520234447. The next prime is 16520234473. The reversal of 16520234460 is 6443202561.

It is an interprime number because it is at equal distance from previous prime (16520234447) and next prime (16520234473).

It is a super-2 number, since 2×16520234460² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043046 + ... + 1058765.

It is an arithmetic number, because the mean of its divisors is an integer number (971037144).

Almost surely, 2^16520234460 is an apocalyptic number.

16520234460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16520234460 is an abundant number, since it is smaller than the sum of its proper divisors (30089548452).

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

16520234460 is a wasteful number, since it uses less digits than its factorization.

16520234460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101954 (or 2101952 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 16520234460 in words is "sixteen billion, five hundred twenty million, two hundred thirty-four thousand, four hundred sixty".