155264222331 has 48 divisors (see below), whose sum is σ = 240195271680. Its totient is φ = 100122104160.

The previous prime is 155264222327. The next prime is 155264222339. The reversal of 155264222331 is 133222462551.

155264222331 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 642 + 2 + 2 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 155264222331 - 2² = 155264222327 is a prime.

It is a super-2 number, since 2×155264222331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155264222339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22135981 + ... + 22142993.

It is an arithmetic number, because the mean of its divisors is an integer number (5004068160).

Almost surely, 2^155264222331 is an apocalyptic number.

155264222331 is a deficient number, since it is larger than the sum of its proper divisors (84931049349).

155264222331 is an equidigital number, since it uses as much as digits as its factorization.

155264222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998 (or 9986 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 155264222331 its reverse (133222462551), we get a palindrome (288486684882).

The spelling of 155264222331 in words is "one hundred fifty-five billion, two hundred sixty-four million, two hundred twenty-two thousand, three hundred thirty-one".