55611916770 has 64 divisors (see below), whose sum is σ = 136631214720. Its totient is φ = 14478739968.

The previous prime is 55611916751. The next prime is 55611916777. The reversal of 55611916770 is 7761911655.

55611916770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55611916777) 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, 3512512 + ... + 3528308.

It is an arithmetic number, because the mean of its divisors is an integer number (2134862730).

Almost surely, 2^55611916770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55611916770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68315607360).

55611916770 is an abundant number, since it is smaller than the sum of its proper divisors (81019297950).

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

55611916770 is a wasteful number, since it uses less digits than its factorization.

55611916770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18579.

The product of its (nonzero) digits is 396900, while the sum is 48.

The spelling of 55611916770 in words is "fifty-five billion, six hundred eleven million, nine hundred sixteen thousand, seven hundred seventy".