16616312700 has 144 divisors (see below), whose sum is σ = 53560426080. Its totient is φ = 3949102080.

The previous prime is 16616312659. The next prime is 16616312707. The reversal of 16616312700 is 721361661.

It is a super-2 number, since 2×16616312700² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616312707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39642 + ... + 186558.

Almost surely, 2^16616312700 is an apocalyptic number.

16616312700 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 16616312700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26780213040).

16616312700 is an abundant number, since it is smaller than the sum of its proper divisors (36944113380).

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

16616312700 is a wasteful number, since it uses less digits than its factorization.

16616312700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146976 (or 146969 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 16616312700 in words is "sixteen billion, six hundred sixteen million, three hundred twelve thousand, seven hundred".