61666707015022 has 16 divisors (see below), whose sum is σ = 92512443822480. Its totient is φ = 30829225980672.

The previous prime is 61666707014989. The next prime is 61666707015049. The reversal of 61666707015022 is 22051070766616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088354929 + ... + 1088411587.

It is an arithmetic number, because the mean of its divisors is an integer number (5782027738905).

Almost surely, 2^{61666707015022} is an apocalyptic number.

61666707015022 is a deficient number, since it is larger than the sum of its proper divisors (30845736807458).

61666707015022 is a wasteful number, since it uses less digits than its factorization.

61666707015022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119907.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 61666707015022 in words is "sixty-one trillion, six hundred sixty-six billion, seven hundred seven million, fifteen thousand, twenty-two".