20970124476 has 36 divisors (see below), whose sum is σ = 56918910888. Its totient is φ = 5991463968.

The previous prime is 20970124471. The next prime is 20970124493. The reversal of 20970124476 is 67442107902.

It is a super-2 number, since 2×20970124476² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20970124471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17831151 + ... + 17832326.

It is an arithmetic number, because the mean of its divisors is an integer number (1581080858).

Almost surely, 2^20970124476 is an apocalyptic number.

It is an amenable number.

20970124476 is an abundant number, since it is smaller than the sum of its proper divisors (35948786412).

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

20970124476 is a wasteful number, since it uses less digits than its factorization.

20970124476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35663498 (or 35663489 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 20970124476 in words is "twenty billion, nine hundred seventy million, one hundred twenty-four thousand, four hundred seventy-six".