16613059680 has 576 divisors, whose sum is σ = 66606478848. Its totient is φ = 3692666880.

The previous prime is 16613059669. The next prime is 16613059703. The reversal of 16613059680 is 8695031661.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78734775 + ... + 78734985.

It is an arithmetic number, because the mean of its divisors is an integer number (115636248).

Almost surely, 2^16613059680 is an apocalyptic number.

16613059680 is a gapful number since it is divisible by the number (10) 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 16613059680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33303239424).

16613059680 is an abundant number, since it is smaller than the sum of its proper divisors (49993419168).

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

16613059680 is a wasteful number, since it uses less digits than its factorization.

16613059680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 16613059680 in words is "sixteen billion, six hundred thirteen million, fifty-nine thousand, six hundred eighty".