66655466674 has 32 divisors (see below), whose sum is σ = 101113528320. Its totient is φ = 32953813200.

The previous prime is 66655466629. The next prime is 66655466681. The reversal of 66655466674 is 47666455666.

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, 67260319 + ... + 67261309.

It is an arithmetic number, because the mean of its divisors is an integer number (3159797760).

Almost surely, 2^66655466674 is an apocalyptic number.

66655466674 is a deficient number, since it is larger than the sum of its proper divisors (34458061646).

66655466674 is a wasteful number, since it uses less digits than its factorization.

66655466674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086.

The product of its digits is 130636800, while the sum is 61.

The spelling of 66655466674 in words is "sixty-six billion, six hundred fifty-five million, four hundred sixty-six thousand, six hundred seventy-four".