20296887756 has 24 divisors (see below), whose sum is σ = 47383984704. Its totient is φ = 6762117840.

The previous prime is 20296887713. The next prime is 20296887761. The reversal of 20296887756 is 65778869202.

It is a self number, because there is not a number n which added to its sum of digits gives 20296887756.

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, 414790 + ... + 461133.

It is an arithmetic number, because the mean of its divisors is an integer number (1974332696).

Almost surely, 2^20296887756 is an apocalyptic number.

It is an amenable number.

20296887756 is an abundant number, since it is smaller than the sum of its proper divisors (27087096948).

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

20296887756 is a wasteful number, since it uses less digits than its factorization.

20296887756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877861 (or 877859 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 20296887756 in words is "twenty billion, two hundred ninety-six million, eight hundred eighty-seven thousand, seven hundred fifty-six".