86661942344 has 32 divisors (see below), whose sum is σ = 167131636320. Its totient is φ = 42103950336.

The previous prime is 86661942313. The next prime is 86661942361. The reversal of 86661942344 is 44324916668.

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, 586262 + ... + 719045.

It is an arithmetic number, because the mean of its divisors is an integer number (5222863635).

Almost surely, 2^86661942344 is an apocalyptic number.

It is an amenable number.

86661942344 is a deficient number, since it is larger than the sum of its proper divisors (80469693976).

86661942344 is a wasteful number, since it uses less digits than its factorization.

86661942344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305549 (or 1305545 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 53.

The spelling of 86661942344 in words is "eighty-six billion, six hundred sixty-one million, nine hundred forty-two thousand, three hundred forty-four".