20850710544 has 60 divisors (see below), whose sum is σ = 58387136496. Its totient is φ = 6946174656.

The previous prime is 20850710537. The next prime is 20850710567. The reversal of 20850710544 is 44501705802.

20850710544 is a `hidden beast` number, since 2 + 0 + 8 + 507 + 105 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20850710499 and 20850710508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210127 + ... + 293009.

Almost surely, 2^20850710544 is an apocalyptic number.

20850710544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20850710544 is an abundant number, since it is smaller than the sum of its proper divisors (37536425952).

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

20850710544 is a wasteful number, since it uses less digits than its factorization.

20850710544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84644 (or 84635 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 20850710544 in words is "twenty billion, eight hundred fifty million, seven hundred ten thousand, five hundred forty-four".