667930589880 has 64 divisors (see below), whose sum is σ = 2041599180960. Its totient is φ = 174754165248.

The previous prime is 667930589831. The next prime is 667930589939. The reversal of 667930589880 is 88985039766.

It is a super-2 number, since 2×667930589880² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52503907 + ... + 52516626.

Almost surely, 2^667930589880 is an apocalyptic number.

667930589880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667930589880 is an abundant number, since it is smaller than the sum of its proper divisors (1373668591080).

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

667930589880 is a wasteful number, since it uses less digits than its factorization.

667930589880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105020600 (or 105020596 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 667930589880 in words is "six hundred sixty-seven billion, nine hundred thirty million, five hundred eighty-nine thousand, eight hundred eighty".