66430166853704 has 32 divisors (see below), whose sum is σ = 128586751587840. Its totient is φ = 32140570348800.

The previous prime is 66430166853703. The next prime is 66430166853709. The reversal of 66430166853704 is 40735866103466.

It is not an unprimeable number, because it can be changed into a prime (66430166853703) 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, 10132412 + ... + 15346859.

It is an arithmetic number, because the mean of its divisors is an integer number (4018335987120).

Almost surely, 2^{66430166853704} is an apocalyptic number.

It is an amenable number.

66430166853704 is a deficient number, since it is larger than the sum of its proper divisors (62156584734136).

66430166853704 is a wasteful number, since it uses less digits than its factorization.

66430166853704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25489821 (or 25489817 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 66430166853704 in words is "sixty-six trillion, four hundred thirty billion, one hundred sixty-six million, eight hundred fifty-three thousand, seven hundred four".