55770670660 has 48 divisors (see below), whose sum is σ = 120084335280. Its totient is φ = 21744322560.

The previous prime is 55770670643. The next prime is 55770670667. The reversal of 55770670660 is 6607607755.

It can be written as a sum of positive squares in 8 ways, for example, as 35633357824 + 20137312836 = 188768^2 + 141906^2 .

It is a super-2 number, since 2×55770670660² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55770670667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885496 + ... + 946384.

It is an arithmetic number, because the mean of its divisors is an integer number (2501756985).

Almost surely, 2^55770670660 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 55770670660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60042167640).

55770670660 is an abundant number, since it is smaller than the sum of its proper divisors (64313664620).

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

55770670660 is a wasteful number, since it uses less digits than its factorization.

55770670660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62056 (or 62054 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 55770670660 in words is "fifty-five billion, seven hundred seventy million, six hundred seventy thousand, six hundred sixty".