155465122023 has 12 divisors (see below), whose sum is σ = 227403273760. Its totient is φ = 102331472256.

The previous prime is 155465121983. The next prime is 155465122039. The reversal of 155465122023 is 320221564551.

155465122023 is a `hidden beast` number, since 1 + 55 + 465 + 122 + 0 + 23 = 666.

It is not a de Polignac number, because 155465122023 - 2²⁰ = 155464073447 is a prime.

It is a super-2 number, since 2×155465122023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155465129023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109327786 + ... + 109329207.

Almost surely, 2^155465122023 is an apocalyptic number.

155465122023 is a deficient number, since it is larger than the sum of its proper divisors (71938151737).

155465122023 is a wasteful number, since it uses less digits than its factorization.

155465122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218657078 (or 218657075 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 155465122023 its reverse (320221564551), we get a palindrome (475686686574).

The spelling of 155465122023 in words is "one hundred fifty-five billion, four hundred sixty-five million, one hundred twenty-two thousand, twenty-three".