55396776960 has 1408 divisors, whose sum is σ = 249020006400. Its totient is φ = 11386552320.

The previous prime is 55396776947. The next prime is 55396776973. The reversal of 55396776960 is 6967769355.

55396776960 is a `hidden beast` number, since 5 + 539 + 6 + 7 + 7 + 6 + 96 + 0 = 666.

55396776960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55396776947) and next prime (55396776973).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 422876095 + ... + 422876225.

It is an arithmetic number, because the mean of its divisors is an integer number (176860800).

Almost surely, 2^55396776960 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 55396776960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124510003200).

55396776960 is an abundant number, since it is smaller than the sum of its proper divisors (193623229440).

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

55396776960 is a wasteful number, since it uses less digits than its factorization.

55396776960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 64297800, while the sum is 63.

The spelling of 55396776960 in words is "fifty-five billion, three hundred ninety-six million, seven hundred seventy-six thousand, nine hundred sixty".