44455122157 has 2 divisors, whose sum is σ = 44455122158. Its totient is φ = 44455122156.

The previous prime is 44455122139. The next prime is 44455122211. The reversal of 44455122157 is 75122155444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44356993321 + 98128836 = 210611^2 + 9906^2 .

It is a cyclic number.

It is not a de Polignac number, because 44455122157 - 2¹⁵ = 44455089389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44455122457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22227561078 + 22227561079.

It is an arithmetic number, because the mean of its divisors is an integer number (22227561079).

Almost surely, 2^44455122157 is an apocalyptic number.

It is an amenable number.

44455122157 is a deficient number, since it is larger than the sum of its proper divisors (1).

44455122157 is an equidigital number, since it uses as much as digits as its factorization.

44455122157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224000, while the sum is 40.

The spelling of 44455122157 in words is "forty-four billion, four hundred fifty-five million, one hundred twenty-two thousand, one hundred fifty-seven".