16611620630 has 32 divisors (see below), whose sum is σ = 33671420928. Its totient is φ = 5845730400.

The previous prime is 16611620617. The next prime is 16611620651. The reversal of 16611620630 is 3602611661.

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, 2432312 + ... + 2439131.

It is an arithmetic number, because the mean of its divisors is an integer number (1052231904).

Almost surely, 2^16611620630 is an apocalyptic number.

16611620630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16611620630 is an abundant number, since it is smaller than the sum of its proper divisors (17059800298).

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

16611620630 is a wasteful number, since it uses less digits than its factorization.

16611620630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871492.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 16611620630 in words is "sixteen billion, six hundred eleven million, six hundred twenty thousand, six hundred thirty".