667463862612 has 12 divisors (see below), whose sum is σ = 1557415679456. Its totient is φ = 222487954200.

The previous prime is 667463862607. The next prime is 667463862617. The reversal of 667463862612 is 216268364766.

It is an interprime number because it is at equal distance from previous prime (667463862607) and next prime (667463862617).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×667463862612² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667463862617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27810994264 + ... + 27810994287.

Almost surely, 2^667463862612 is an apocalyptic number.

It is an amenable number.

667463862612 is an abundant number, since it is smaller than the sum of its proper divisors (889951816844).

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

667463862612 is a wasteful number, since it uses less digits than its factorization.

667463862612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55621988558 (or 55621988556 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 57.

The spelling of 667463862612 in words is "six hundred sixty-seven billion, four hundred sixty-three million, eight hundred sixty-two thousand, six hundred twelve".