20623165381874 has 32 divisors (see below), whose sum is σ = 34085302972416. Its totient is φ = 9280310315920.

The previous prime is 20623165381859. The next prime is 20623165381937. The reversal of 20623165381874 is 47818356132602.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554567 + ... + 6446229.

It is an arithmetic number, because the mean of its divisors is an integer number (1065165717888).

Almost surely, 2^{20623165381874} is an apocalyptic number.

20623165381874 is a deficient number, since it is larger than the sum of its proper divisors (13462137590542).

20623165381874 is a wasteful number, since it uses less digits than its factorization.

20623165381874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893270.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 20623165381874 in words is "twenty trillion, six hundred twenty-three billion, one hundred sixty-five million, three hundred eighty-one thousand, eight hundred seventy-four".