20476215528 has 32 divisors (see below), whose sum is σ = 51194052000. Its totient is φ = 6824936768.

The previous prime is 20476215521. The next prime is 20476215553. The reversal of 20476215528 is 82551267402.

It is a self number, because there is not a number n which added to its sum of digits gives 20476215528.

It is not an unprimeable number, because it can be changed into a prime (20476215521) 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, 639550 + ... + 670802.

It is an arithmetic number, because the mean of its divisors is an integer number (1599814125).

Almost surely, 2^20476215528 is an apocalyptic number.

It is an amenable number.

20476215528 is an abundant number, since it is smaller than the sum of its proper divisors (30717836472).

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

20476215528 is a wasteful number, since it uses less digits than its factorization.

20476215528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58561 (or 58557 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 20476215528 in words is "twenty billion, four hundred seventy-six million, two hundred fifteen thousand, five hundred twenty-eight".