55144111770 has 64 divisors (see below), whose sum is σ = 160419242880. Its totient is φ = 13368268800.

The previous prime is 55144111769. The next prime is 55144111819. The reversal of 55144111770 is 7711144155.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9280551 + ... + 9286490.

It is an arithmetic number, because the mean of its divisors is an integer number (2506550670).

Almost surely, 2^55144111770 is an apocalyptic number.

55144111770 is an abundant number, since it is smaller than the sum of its proper divisors (105275131110).

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

55144111770 is a wasteful number, since it uses less digits than its factorization.

55144111770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18567068 (or 18567062 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

It can be divided in two parts, 5514411 and 1770, that added together give a triangular number (5516181 = T₃₃₂₁).

The spelling of 55144111770 in words is "fifty-five billion, one hundred forty-four million, one hundred eleven thousand, seven hundred seventy".