55177061760 has 256 divisors, whose sum is σ = 195775128000. Its totient is φ = 14687059968.

The previous prime is 55177061749. The next prime is 55177061837. The reversal of 55177061760 is 6716077155.

55177061760 is a `hidden beast` number, since 5 + 517 + 7 + 0 + 61 + 76 + 0 = 666.

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

It is a congruent 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, 10590036 + ... + 10595244.

Almost surely, 2^55177061760 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 55177061760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97887564000).

55177061760 is an abundant number, since it is smaller than the sum of its proper divisors (140598066240).

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

55177061760 is a wasteful number, since it uses less digits than its factorization.

55177061760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850 (or 5832 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 45.

The spelling of 55177061760 in words is "fifty-five billion, one hundred seventy-seven million, sixty-one thousand, seven hundred sixty".