155461011552323 has 4 divisors (see below), whose sum is σ = 160821736088640. Its totient is φ = 150100287016008.

The previous prime is 155461011552281. The next prime is 155461011552349. The reversal of 155461011552323 is 323255110164551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155461011552323 - 2²⁶ = 155460944443459 is a prime.

It is a super-2 number, since 2×155461011552323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155461011552823) 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, 2680362268115 + ... + 2680362268172.

It is an arithmetic number, because the mean of its divisors is an integer number (40205434022160).

Almost surely, 2^{155461011552323} is an apocalyptic number.

155461011552323 is a deficient number, since it is larger than the sum of its proper divisors (5360724536317).

155461011552323 is an equidigital number, since it uses as much as digits as its factorization.

155461011552323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360724536316.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 155461011552323 in words is "one hundred fifty-five trillion, four hundred sixty-one billion, eleven million, five hundred fifty-two thousand, three hundred twenty-three".