20445415674 has 64 divisors (see below), whose sum is σ = 42389066880. Its totient is φ = 6569164800.

The previous prime is 20445415663. The next prime is 20445415699. The reversal of 20445415674 is 47651454402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14509882 + ... + 14511290.

It is an arithmetic number, because the mean of its divisors is an integer number (662329170).

Almost surely, 2^20445415674 is an apocalyptic number.

20445415674 is an abundant number, since it is smaller than the sum of its proper divisors (21943651206).

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

20445415674 is a wasteful number, since it uses less digits than its factorization.

20445415674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 20445415674 in words is "twenty billion, four hundred forty-five million, four hundred fifteen thousand, six hundred seventy-four".