20161936560466 has 8 divisors (see below), whose sum is σ = 31834636674480. Its totient is φ = 9550391002308.

The previous prime is 20161936560347. The next prime is 20161936560481. The reversal of 20161936560466 is 66406563916102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265288638916 + ... + 265288638991.

It is an arithmetic number, because the mean of its divisors is an integer number (3979329584310).

Almost surely, 2^{20161936560466} is an apocalyptic number.

20161936560466 is a deficient number, since it is larger than the sum of its proper divisors (11672700114014).

20161936560466 is a wasteful number, since it uses less digits than its factorization.

20161936560466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530577277928.

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 20161936560466 in words is "twenty trillion, one hundred sixty-one billion, nine hundred thirty-six million, five hundred sixty thousand, four hundred sixty-six".