670625599680 has 168 divisors, whose sum is σ = 2307421539072. Its totient is φ = 178775433216.

The previous prime is 670625599643. The next prime is 670625599681. The reversal of 670625599680 is 86995526076.

670625599680 is a `hidden beast` number, since 6 + 70 + 6 + 2 + 559 + 9 + 6 + 8 + 0 = 666.

It is a super-2 number, since 2×670625599680² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (670625599681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9228769 + ... + 9301151.

Almost surely, 2^670625599680 is an apocalyptic number.

670625599680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670625599680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153710769536).

670625599680 is an abundant number, since it is smaller than the sum of its proper divisors (1636795939392).

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

670625599680 is a wasteful number, since it uses less digits than its factorization.

670625599680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75623 (or 75610 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 670625599680 in words is "six hundred seventy billion, six hundred twenty-five million, five hundred ninety-nine thousand, six hundred eighty".