16516253480 has 32 divisors (see below), whose sum is σ = 37454192640. Its totient is φ = 6554479680.

The previous prime is 16516253461. The next prime is 16516253489. The reversal of 16516253480 is 8435261561.

It is a super-2 number, since 2×16516253480² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16516253489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620536 + ... + 1630695.

It is an arithmetic number, because the mean of its divisors is an integer number (1170443520).

Almost surely, 2^16516253480 is an apocalyptic number.

16516253480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16516253480 is an abundant number, since it is smaller than the sum of its proper divisors (20937939160).

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

16516253480 is a wasteful number, since it uses less digits than its factorization.

16516253480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251369 (or 3251365 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 16516253480 in words is "sixteen billion, five hundred sixteen million, two hundred fifty-three thousand, four hundred eighty".