16630559057840 has 640 divisors, whose sum is σ = 48579376054272. Its totient is φ = 5155346165760.

The previous prime is 16630559057771. The next prime is 16630559057869. The reversal of 16630559057840 is 4875095503661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16630559057840.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31798391819 + ... + 31798392341.

Almost surely, 2^{16630559057840} is an apocalyptic number.

16630559057840 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 16630559057840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24289688027136).

16630559057840 is an abundant number, since it is smaller than the sum of its proper divisors (31948816996432).

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

16630559057840 is a wasteful number, since it uses less digits than its factorization.

16630559057840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 16630559057840 in words is "sixteen trillion, six hundred thirty billion, five hundred fifty-nine million, fifty-seven thousand, eight hundred forty".