667701558460 has 48 divisors (see below), whose sum is σ = 1437526290816. Its totient is φ = 260370476352.

The previous prime is 667701558457. The next prime is 667701558487. The reversal of 667701558460 is 64855107766.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292474 + ... + 1192033.

It is an arithmetic number, because the mean of its divisors is an integer number (29948464392).

Almost surely, 2^667701558460 is an apocalyptic number.

It is an amenable number.

667701558460 is an abundant number, since it is smaller than the sum of its proper divisors (769824732356).

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

667701558460 is a wasteful number, since it uses less digits than its factorization.

667701558460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485082 (or 1485080 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 667701558460 in words is "six hundred sixty-seven billion, seven hundred one million, five hundred fifty-eight thousand, four hundred sixty".