10971620880 has 80 divisors (see below), whose sum is σ = 37104035904. Its totient is φ = 2659786240.

The previous prime is 10971620819. The next prime is 10971620897. The reversal of 10971620880 is 8802617901.

It is a tau number, because it is divible by the number of its divisors (80).

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, 2075319 + ... + 2080598.

Almost surely, 2^10971620880 is an apocalyptic number.

10971620880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10971620880 is an abundant number, since it is smaller than the sum of its proper divisors (26132415024).

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

10971620880 is a wasteful number, since it uses less digits than its factorization.

10971620880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155944 (or 4155938 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 10971620880 in words is "ten billion, nine hundred seventy-one million, six hundred twenty thousand, eight hundred eighty".