1980926016 has 56 divisors (see below), whose sum is σ = 5517062880. Its totient is φ = 625554432.

The previous prime is 1980925951. The next prime is 1980926023. The reversal of 1980926016 is 6106290891.

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, 267861 + ... + 275156.

It is an arithmetic number, because the mean of its divisors is an integer number (98518980).

Almost surely, 2^1980926016 is an apocalyptic number.

1980926016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1980926016 is an abundant number, since it is smaller than the sum of its proper divisors (3536136864).

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

1980926016 is a wasteful number, since it uses less digits than its factorization.

1980926016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543051 (or 543041 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1980926016 is about 44507.5950372518. The cubic root of 1980926016 is about 1255.9029635502.

The spelling of 1980926016 in words is "one billion, nine hundred eighty million, nine hundred twenty-six thousand, sixteen".