667462271344 has 40 divisors (see below), whose sum is σ = 1411433488368. Its totient is φ = 303249799680.

The previous prime is 667462271323. The next prime is 667462271353. The reversal of 667462271344 is 443172264766.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 667462271291 and 667462271300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511207 + ... + 1263430.

Almost surely, 2^667462271344 is an apocalyptic number.

It is an amenable number.

667462271344 is an abundant number, since it is smaller than the sum of its proper divisors (743971217024).

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

667462271344 is a wasteful number, since it uses less digits than its factorization.

667462271344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776793 (or 1776787 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 52.

The spelling of 667462271344 in words is "six hundred sixty-seven billion, four hundred sixty-two million, two hundred seventy-one thousand, three hundred forty-four".