666463025550134 has 16 divisors (see below), whose sum is σ = 1058501359096416. Its totient is φ = 313629285840000.

The previous prime is 666463025550073. The next prime is 666463025550167. The reversal of 666463025550134 is 431055520364666.

It is a self number, because there is not a number n which added to its sum of digits gives 666463025550134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18452984 + ... + 40907684.

It is an arithmetic number, because the mean of its divisors is an integer number (66156334943526).

Almost surely, 2^{666463025550134} is an apocalyptic number.

666463025550134 is a deficient number, since it is larger than the sum of its proper divisors (392038333546282).

666463025550134 is a wasteful number, since it uses less digits than its factorization.

666463025550134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23327671.

The product of its (nonzero) digits is 46656000, while the sum is 56.

The spelling of 666463025550134 in words is "six hundred sixty-six trillion, four hundred sixty-three billion, twenty-five million, five hundred fifty thousand, one hundred thirty-four".