20964360588 has 24 divisors (see below), whose sum is σ = 50109936240. Its totient is φ = 6817678080.

The previous prime is 20964360583. The next prime is 20964360631. The reversal of 20964360588 is 88506346902.

It is a self number, because there is not a number n which added to its sum of digits gives 20964360588.

It is not an unprimeable number, because it can be changed into a prime (20964360583) 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, 21304753 + ... + 21305736.

It is an arithmetic number, because the mean of its divisors is an integer number (2087914010).

Almost surely, 2^20964360588 is an apocalyptic number.

It is an amenable number.

20964360588 is an abundant number, since it is smaller than the sum of its proper divisors (29145575652).

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

20964360588 is a wasteful number, since it uses less digits than its factorization.

20964360588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42610537 (or 42610535 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 20964360588 in words is "twenty billion, nine hundred sixty-four million, three hundred sixty thousand, five hundred eighty-eight".