55116344401 has 2 divisors, whose sum is σ = 55116344402. Its totient is φ = 55116344400.

The previous prime is 55116344363. The next prime is 55116344449. The reversal of 55116344401 is 10444361155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31138131600 + 23978212801 = 176460^2 + 154849^2 .

It is a cyclic number.

It is not a de Polignac number, because 55116344401 - 2⁹ = 55116343889 is a prime.

It is a super-2 number, since 2×55116344401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55116344471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27558172200 + 27558172201.

It is an arithmetic number, because the mean of its divisors is an integer number (27558172201).

Almost surely, 2^55116344401 is an apocalyptic number.

It is an amenable number.

55116344401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55116344401 is an equidigital number, since it uses as much as digits as its factorization.

55116344401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 55116344401 in words is "fifty-five billion, one hundred sixteen million, three hundred forty-four thousand, four hundred one".