155330225540231 has 16 divisors (see below), whose sum is σ = 181883627887104. Its totient is φ = 129875676817824.

The previous prime is 155330225540207. The next prime is 155330225540263. The reversal of 155330225540231 is 132045522033551.

It is not a de Polignac number, because 155330225540231 - 2³⁰ = 155329151798407 is a prime.

It is a super-2 number, since 2×155330225540231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155330225540431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333562451 + ... + 334027796.

It is an arithmetic number, because the mean of its divisors is an integer number (11367726742944).

Almost surely, 2^{155330225540231} is an apocalyptic number.

155330225540231 is a deficient number, since it is larger than the sum of its proper divisors (26553402346873).

155330225540231 is an equidigital number, since it uses as much as digits as its factorization.

155330225540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667591070.

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 155330225540231 its reverse (132045522033551), we get a palindrome (287375747573782).

The spelling of 155330225540231 in words is "one hundred fifty-five trillion, three hundred thirty billion, two hundred twenty-five million, five hundred forty thousand, two hundred thirty-one".