16656502104 has 96 divisors (see below), whose sum is σ = 49253106240. Its totient is φ = 5043249600.

The previous prime is 16656502099. The next prime is 16656502157. The reversal of 16656502104 is 40120565661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027099 + ... + 1043189.

It is an arithmetic number, because the mean of its divisors is an integer number (513053190).

Almost surely, 2^16656502104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16656502104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24626553120).

16656502104 is an abundant number, since it is smaller than the sum of its proper divisors (32596604136).

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

16656502104 is a wasteful number, since it uses less digits than its factorization.

16656502104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17421 (or 17414 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16656502104 in words is "sixteen billion, six hundred fifty-six million, five hundred two thousand, one hundred four".