665664102467 has 48 divisors (see below), whose sum is σ = 843959692800. Its totient is φ = 524569500000.

The previous prime is 665664102457. The next prime is 665664102541. The reversal of 665664102467 is 764201466566.

It is a happy number.

It is not a de Polignac number, because 665664102467 - 2⁴ = 665664102451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (665664102407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14526842 + ... + 14572592.

It is an arithmetic number, because the mean of its divisors is an integer number (17582493600).

Almost surely, 2^665664102467 is an apocalyptic number.

665664102467 is a deficient number, since it is larger than the sum of its proper divisors (178295590333).

665664102467 is a wasteful number, since it uses less digits than its factorization.

665664102467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46049 (or 46022 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 665664102467 in words is "six hundred sixty-five billion, six hundred sixty-four million, one hundred two thousand, four hundred sixty-seven".