66877735460 has 48 divisors (see below), whose sum is σ = 142880068800. Its totient is φ = 26287296384.

The previous prime is 66877735451. The next prime is 66877735493. The reversal of 66877735460 is 6453777866.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a self number, because there is not a number n which added to its sum of digits gives 66877735460.

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, 3422879 + ... + 3442361.

It is an arithmetic number, because the mean of its divisors is an integer number (2976668100).

Almost surely, 2^66877735460 is an apocalyptic number.

It is an amenable number.

66877735460 is an abundant number, since it is smaller than the sum of its proper divisors (76002333340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66877735460 is a wasteful number, since it uses less digits than its factorization.

66877735460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22460 (or 22458 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 59.

The spelling of 66877735460 in words is "sixty-six billion, eight hundred seventy-seven million, seven hundred thirty-five thousand, four hundred sixty".