155058831361 has 4 divisors (see below), whose sum is σ = 177210092992. Its totient is φ = 132907569732.

The previous prime is 155058831313. The next prime is 155058831409. The reversal of 155058831361 is 163138850551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (155058831313) and next prime (155058831409).

It is a de Polignac number, because none of the positive numbers 2^k-155058831361 is a prime.

It is a super-2 number, since 2×155058831361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155058831761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11075630805 + ... + 11075630818.

It is an arithmetic number, because the mean of its divisors is an integer number (44302523248).

Almost surely, 2^155058831361 is an apocalyptic number.

It is an amenable number.

155058831361 is a deficient number, since it is larger than the sum of its proper divisors (22151261631).

155058831361 is an equidigital number, since it uses as much as digits as its factorization.

155058831361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22151261630.

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 155058831361 in words is "one hundred fifty-five billion, fifty-eight million, eight hundred thirty-one thousand, three hundred sixty-one".