66632402086 has 16 divisors (see below), whose sum is σ = 100708570368. Its totient is φ = 33063309000.

The previous prime is 66632402029. The next prime is 66632402087. The reversal of 66632402086 is 68020423666.

66632402086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66632402087) 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, 204361 + ... + 418363.

It is an arithmetic number, because the mean of its divisors is an integer number (6294285648).

Almost surely, 2^66632402086 is an apocalyptic number.

66632402086 is a deficient number, since it is larger than the sum of its proper divisors (34076168282).

66632402086 is a wasteful number, since it uses less digits than its factorization.

66632402086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215187.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 66632402086 in words is "sixty-six billion, six hundred thirty-two million, four hundred two thousand, eighty-six".