66883638352632 has 64 divisors (see below), whose sum is σ = 169982514938880. Its totient is φ = 21927165964032.

The previous prime is 66883638352621. The next prime is 66883638352639. The reversal of 66883638352632 is 23625383638866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66883638352639) 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, 74838573 + ... + 75727004.

It is an arithmetic number, because the mean of its divisors is an integer number (2655976795920).

Almost surely, 2^{66883638352632} is an apocalyptic number.

It is an amenable number.

66883638352632 is an abundant number, since it is smaller than the sum of its proper divisors (103098876586248).

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

66883638352632 is a wasteful number, since it uses less digits than its factorization.

66883638352632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150565892 (or 150565888 counting only the distinct ones).

The product of its digits is 1074954240, while the sum is 69.

The spelling of 66883638352632 in words is "sixty-six trillion, eight hundred eighty-three billion, six hundred thirty-eight million, three hundred fifty-two thousand, six hundred thirty-two".