66357401896 has 16 divisors (see below), whose sum is σ = 124422891840. Its totient is φ = 33177964080.

The previous prime is 66357401849. The next prime is 66357401947. The reversal of 66357401896 is 69810475366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573841 + ... + 679711.

It is an arithmetic number, because the mean of its divisors is an integer number (7776430740).

Almost surely, 2^66357401896 is an apocalyptic number.

It is an amenable number.

66357401896 is a deficient number, since it is larger than the sum of its proper divisors (58065489944).

66357401896 is a wasteful number, since it uses less digits than its factorization.

66357401896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184224 (or 184220 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 66357401896 in words is "sixty-six billion, three hundred fifty-seven million, four hundred one thousand, eight hundred ninety-six".