16451985180 has 48 divisors (see below), whose sum is σ = 46696605984. Its totient is φ = 4327096320.

The previous prime is 16451985103. The next prime is 16451985191. The reversal of 16451985180 is 8158915461.

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, 1873701 + ... + 1882460.

It is an arithmetic number, because the mean of its divisors is an integer number (972845958).

Almost surely, 2^16451985180 is an apocalyptic number.

16451985180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16451985180 is an abundant number, since it is smaller than the sum of its proper divisors (30244620804).

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

16451985180 is a wasteful number, since it uses less digits than its factorization.

16451985180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756246 (or 3756244 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 48.

The spelling of 16451985180 in words is "sixteen billion, four hundred fifty-one million, nine hundred eighty-five thousand, one hundred eighty".