16477881708 has 24 divisors (see below), whose sum is σ = 40471990720. Its totient is φ = 5203541520.

The previous prime is 16477881671. The next prime is 16477881731. The reversal of 16477881708 is 80718877461.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 36135478 + ... + 36135933.

Almost surely, 2^16477881708 is an apocalyptic number.

It is an amenable number.

16477881708 is an abundant number, since it is smaller than the sum of its proper divisors (23994109012).

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

16477881708 is a wasteful number, since it uses less digits than its factorization.

16477881708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72271437 (or 72271435 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 57.

The spelling of 16477881708 in words is "sixteen billion, four hundred seventy-seven million, eight hundred eighty-one thousand, seven hundred eight".