66604766505132 has 48 divisors (see below), whose sum is σ = 158450181765120. Its totient is φ = 21768002363328.

The previous prime is 66604766505113. The next prime is 66604766505139. The reversal of 66604766505132 is 23150566740666.

It is not an unprimeable number, because it can be changed into a prime (66604766505139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34365132 + ... + 36251507.

It is an arithmetic number, because the mean of its divisors is an integer number (3301045453440).

Almost surely, 2^{66604766505132} is an apocalyptic number.

It is an amenable number.

66604766505132 is an abundant number, since it is smaller than the sum of its proper divisors (91845415259988).

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

66604766505132 is a wasteful number, since it uses less digits than its factorization.

66604766505132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70618182 (or 70618180 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 57.

The spelling of 66604766505132 in words is "sixty-six trillion, six hundred four billion, seven hundred sixty-six million, five hundred five thousand, one hundred thirty-two".