667251466355560 has 64 divisors (see below), whose sum is σ = 1634826641760000. Its totient is φ = 244134111820032.

The previous prime is 667251466355449. The next prime is 667251466355567. The reversal of 667251466355560 is 65553664152766.

It is not an unprimeable number, because it can be changed into a prime (667251466355567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15137261680 + ... + 15137305759.

It is an arithmetic number, because the mean of its divisors is an integer number (25544166277500).

Almost surely, 2^{667251466355560} is an apocalyptic number.

It is an amenable number.

667251466355560 is an abundant number, since it is smaller than the sum of its proper divisors (967575175404440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667251466355560 is a wasteful number, since it uses less digits than its factorization.

667251466355560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30274567498 (or 30274567494 counting only the distinct ones).

The product of its (nonzero) digits is 816480000, while the sum is 67.

The spelling of 667251466355560 in words is "six hundred sixty-seven trillion, two hundred fifty-one billion, four hundred sixty-six million, three hundred fifty-five thousand, five hundred sixty".