155332230013 has 4 divisors (see below), whose sum is σ = 163507610560. Its totient is φ = 147156849468.

The previous prime is 155332229911. The next prime is 155332230019. The reversal of 155332230013 is 310032233551.

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 a cyclic number.

It is not a de Polignac number, because 155332230013 - 2²⁹ = 154795359101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155332230019) 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, 4087690245 + ... + 4087690282.

It is an arithmetic number, because the mean of its divisors is an integer number (40876902640).

Almost surely, 2^155332230013 is an apocalyptic number.

It is an amenable number.

155332230013 is a deficient number, since it is larger than the sum of its proper divisors (8175380547).

155332230013 is an equidigital number, since it uses as much as digits as its factorization.

155332230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175380546.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 155332230013 its reverse (310032233551), we get a palindrome (465364463564).

The spelling of 155332230013 in words is "one hundred fifty-five billion, three hundred thirty-two million, two hundred thirty thousand, thirteen".