5215100660 has 96 divisors (see below), whose sum is σ = 13789681920. Its totient is φ = 1609344000.

The previous prime is 5215100609. The next prime is 5215100663. The reversal of 5215100660 is 660015125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215100663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138776 + ... + 172304.

It is an arithmetic number, because the mean of its divisors is an integer number (143642520).

Almost surely, 2^5215100660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5215100660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6894840960).

5215100660 is an abundant number, since it is smaller than the sum of its proper divisors (8574581260).

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

5215100660 is a wasteful number, since it uses less digits than its factorization.

5215100660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33657 (or 33655 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5215100660 is about 72215.6538431939. The cubic root of 5215100660 is about 1734.1536133122.

Adding to 5215100660 its reverse (660015125), we get a palindrome (5875115785).

The spelling of 5215100660 in words is "five billion, two hundred fifteen million, one hundred thousand, six hundred sixty".