66974664526632 has 32 divisors (see below), whose sum is σ = 186040734796800. Its totient is φ = 22324888175472.

The previous prime is 66974664526631. The next prime is 66974664526673. The reversal of 66974664526632 is 23662546647966.

66974664526632 is a `hidden beast` number, since 6 + 6 + 9 + 7 + 4 + 6 + 64 + 526 + 6 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (66974664526631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155033945448 + ... + 155033945879.

It is an arithmetic number, because the mean of its divisors is an integer number (5813772962400).

Almost surely, 2^{66974664526632} is an apocalyptic number.

It is an amenable number.

66974664526632 is an abundant number, since it is smaller than the sum of its proper divisors (119066070270168).

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

66974664526632 is a wasteful number, since it uses less digits than its factorization.

66974664526632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310067891342 (or 310067891332 counting only the distinct ones).

The product of its digits is 2821754880, while the sum is 72.

The spelling of 66974664526632 in words is "sixty-six trillion, nine hundred seventy-four billion, six hundred sixty-four million, five hundred twenty-six thousand, six hundred thirty-two".