244155355117 has 2 divisors, whose sum is σ = 244155355118. Its totient is φ = 244155355116.

The previous prime is 244155355091. The next prime is 244155355127. The reversal of 244155355117 is 711553551442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170916923241 + 73238431876 = 413421^2 + 270626^2 .

It is a cyclic number.

It is not a de Polignac number, because 244155355117 - 2¹¹ = 244155353069 is a prime.

It is a super-2 number, since 2×244155355117² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244155355127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122077677558 + 122077677559.

It is an arithmetic number, because the mean of its divisors is an integer number (122077677559).

Almost surely, 2^244155355117 is an apocalyptic number.

It is an amenable number.

244155355117 is a deficient number, since it is larger than the sum of its proper divisors (1).

244155355117 is an equidigital number, since it uses as much as digits as its factorization.

244155355117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 43.

The spelling of 244155355117 in words is "two hundred forty-four billion, one hundred fifty-five million, three hundred fifty-five thousand, one hundred seventeen".