502560661650 has 96 divisors (see below), whose sum is σ = 1301202396288. Its totient is φ = 128124057600.

The previous prime is 502560661643. The next prime is 502560661661. The reversal of 502560661650 is 56166065205.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6922540 + ... + 6994760.

It is an arithmetic number, because the mean of its divisors is an integer number (13554191628).

Almost surely, 2^502560661650 is an apocalyptic number.

502560661650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 502560661650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650601198144).

502560661650 is an abundant number, since it is smaller than the sum of its proper divisors (798641734638).

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

502560661650 is a wasteful number, since it uses less digits than its factorization.

502560661650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74276 (or 74271 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 502560661650 in words is "five hundred two billion, five hundred sixty million, six hundred sixty-one thousand, six hundred fifty".