55064420621145 has 24 divisors (see below), whose sum is σ = 102786918493896. Its totient is φ = 27108637843968.

The previous prime is 55064420621123. The next prime is 55064420621257. The reversal of 55064420621145 is 54112602446055.

55064420621145 is a `hidden beast` number, since 5 + 5 + 0 + 6 + 4 + 4 + 2 + 0 + 621 + 14 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3092663408409 + 51971757212736 = 1758597^2 + 7209144^2 .

It is not a de Polignac number, because 55064420621145 - 2⁶ = 55064420621081 is a prime.

It is a super-2 number, since 2×55064420621145² (a number of 28 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55064420621145.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47063606784 + ... + 47063607953.

It is an arithmetic number, because the mean of its divisors is an integer number (4282788270579).

Almost surely, 2^{55064420621145} is an apocalyptic number.

It is an amenable number.

55064420621145 is a deficient number, since it is larger than the sum of its proper divisors (47722497872751).

55064420621145 is a wasteful number, since it uses less digits than its factorization.

55064420621145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94127214761 (or 94127214758 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 55064420621145 in words is "fifty-five trillion, sixty-four billion, four hundred twenty million, six hundred twenty-one thousand, one hundred forty-five".