16607655780 has 24 divisors (see below), whose sum is σ = 46501436352. Its totient is φ = 4428708192.

The previous prime is 16607655763. The next prime is 16607655781. The reversal of 16607655780 is 8755670661.

It is not an unprimeable number, because it can be changed into a prime (16607655781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138397072 + ... + 138397191.

It is an arithmetic number, because the mean of its divisors is an integer number (1937559848).

Almost surely, 2^16607655780 is an apocalyptic number.

16607655780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16607655780 is an abundant number, since it is smaller than the sum of its proper divisors (29893780572).

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

16607655780 is a wasteful number, since it uses less digits than its factorization.

16607655780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276794275 (or 276794273 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 16607655780 in words is "sixteen billion, six hundred seven million, six hundred fifty-five thousand, seven hundred eighty".