52660338490 has 128 divisors (see below), whose sum is σ = 103982227200. Its totient is φ = 19127193600.

The previous prime is 52660338481. The next prime is 52660338491. The reversal of 52660338490 is 9483306625.

It is a happy number.

It is a super-2 number, since 2×52660338490² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52660338490.

It is not an unprimeable number, because it can be changed into a prime (52660338491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 229957696 + ... + 229957924.

It is an arithmetic number, because the mean of its divisors is an integer number (812361150).

Almost surely, 2^52660338490 is an apocalyptic number.

52660338490 is a deficient number, since it is larger than the sum of its proper divisors (51321888710).

52660338490 is a wasteful number, since it uses less digits than its factorization.

52660338490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 52660338490 in words is "fifty-two billion, six hundred sixty million, three hundred thirty-eight thousand, four hundred ninety".