5277156660 has 144 divisors (see below), whose sum is σ = 17496041472. Its totient is φ = 1281715200.

The previous prime is 5277156659. The next prime is 5277156667. The reversal of 5277156660 is 666517725.

5277156660 = 217² + 218² + ... + 2511².

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5277156667) 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, 67045 + ... + 122675.

It is an arithmetic number, because the mean of its divisors is an integer number (121500288).

Almost surely, 2^5277156660 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 5277156660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8748020736).

5277156660 is an abundant number, since it is smaller than the sum of its proper divisors (12218884812).

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

5277156660 is a wasteful number, since it uses less digits than its factorization.

5277156660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55694 (or 55689 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 5277156660 is about 72644.0407741750. The cubic root of 5277156660 is about 1741.0049090159.

The spelling of 5277156660 in words is "five billion, two hundred seventy-seven million, one hundred fifty-six thousand, six hundred sixty".