66605302632 has 64 divisors (see below), whose sum is σ = 181724198400. Its totient is φ = 20175272640.

The previous prime is 66605302553. The next prime is 66605302637. The reversal of 66605302632 is 23620350666.

66605302632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66605302632² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66605302637) 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, 620613 + ... + 719979.

It is an arithmetic number, because the mean of its divisors is an integer number (2839440600).

Almost surely, 2^66605302632 is an apocalyptic number.

It is an amenable number.

66605302632 is an abundant number, since it is smaller than the sum of its proper divisors (115118895768).

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

66605302632 is a wasteful number, since it uses less digits than its factorization.

66605302632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101926 (or 101922 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 66605302632 in words is "sixty-six billion, six hundred five million, three hundred two thousand, six hundred thirty-two".