155456718383 has 2 divisors, whose sum is σ = 155456718384. Its totient is φ = 155456718382.

The previous prime is 155456718379. The next prime is 155456718401. The reversal of 155456718383 is 383817654551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155456718383 - 2² = 155456718379 is a prime.

It is a super-2 number, since 2×155456718383² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155456718353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77728359191 + 77728359192.

It is an arithmetic number, because the mean of its divisors is an integer number (77728359192).

Almost surely, 2^155456718383 is an apocalyptic number.

155456718383 is a deficient number, since it is larger than the sum of its proper divisors (1).

155456718383 is an equidigital number, since it uses as much as digits as its factorization.

155456718383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 56.

The spelling of 155456718383 in words is "one hundred fifty-five billion, four hundred fifty-six million, seven hundred eighteen thousand, three hundred eighty-three".