55130433658561 has 8 divisors (see below), whose sum is σ = 55354798018440. Its totient is φ = 54906506231808.

The previous prime is 55130433658541. The next prime is 55130433658609. The reversal of 55130433658561 is 16585633403155.

It can be written as a sum of positive squares in 4 ways, for example, as 15091911898561 + 40038521760000 = 3884831^2 + 6327600^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55130433658561 - 2¹⁷ = 55130433527489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55130433658541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108980416 + ... + 109485121.

It is an arithmetic number, because the mean of its divisors is an integer number (6919349752305).

Almost surely, 2^{55130433658561} is an apocalyptic number.

It is an amenable number.

55130433658561 is a deficient number, since it is larger than the sum of its proper divisors (224364359879).

55130433658561 is a wasteful number, since it uses less digits than its factorization.

55130433658561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218466563.

The product of its (nonzero) digits is 19440000, while the sum is 55.

The spelling of 55130433658561 in words is "fifty-five trillion, one hundred thirty billion, four hundred thirty-three million, six hundred fifty-eight thousand, five hundred sixty-one".