16670720660 has 48 divisors (see below), whose sum is σ = 38391155712. Its totient is φ = 6030326400.

The previous prime is 16670720653. The next prime is 16670720681. The reversal of 16670720660 is 6602707661.

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, 156347 + ... + 240386.

It is an arithmetic number, because the mean of its divisors is an integer number (799815744).

Almost surely, 2^16670720660 is an apocalyptic number.

16670720660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16670720660 is an abundant number, since it is smaller than the sum of its proper divisors (21720435052).

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

16670720660 is a wasteful number, since it uses less digits than its factorization.

16670720660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396944 (or 396942 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 16670720660 in words is "sixteen billion, six hundred seventy million, seven hundred twenty thousand, six hundred sixty".