16617164880 has 80 divisors (see below), whose sum is σ = 51538844160. Its totient is φ = 4429039104.

The previous prime is 16617164873. The next prime is 16617164891. The reversal of 16617164880 is 8846171661.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×16617164880² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 498166 + ... + 530474.

It is an arithmetic number, because the mean of its divisors is an integer number (644235552).

Almost surely, 2^16617164880 is an apocalyptic number.

16617164880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16617164880 is an abundant number, since it is smaller than the sum of its proper divisors (34921679280).

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

16617164880 is a wasteful number, since it uses less digits than its factorization.

16617164880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34468 (or 34462 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 16617164880 in words is "sixteen billion, six hundred seventeen million, one hundred sixty-four thousand, eight hundred eighty".