667670385324 has 96 divisors (see below), whose sum is σ = 1735294095360. Its totient is φ = 198835560000.

The previous prime is 667670385323. The next prime is 667670385337. The reversal of 667670385324 is 423583076766.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (667670385323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524302 + ... + 1268949.

It is an arithmetic number, because the mean of its divisors is an integer number (18075980160).

Almost surely, 2^667670385324 is an apocalyptic number.

It is an amenable number.

667670385324 is an abundant number, since it is smaller than the sum of its proper divisors (1067623710036).

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

667670385324 is a wasteful number, since it uses less digits than its factorization.

667670385324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793371 (or 1793369 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 667670385324 in words is "six hundred sixty-seven billion, six hundred seventy million, three hundred eighty-five thousand, three hundred twenty-four".