66115610122 has 8 divisors (see below), whose sum is σ = 99387614016. Its totient is φ = 32986405452.

The previous prime is 66115610087. The next prime is 66115610149. The reversal of 66115610122 is 22101651166.

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, 35698648 + ... + 35700499.

It is an arithmetic number, because the mean of its divisors is an integer number (12423451752).

Almost surely, 2^66115610122 is an apocalyptic number.

66115610122 is a deficient number, since it is larger than the sum of its proper divisors (33272003894).

66115610122 is a wasteful number, since it uses less digits than its factorization.

66115610122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71399612.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 66115610122 in words is "sixty-six billion, one hundred fifteen million, six hundred ten thousand, one hundred twenty-two".