155212023130461 has 24 divisors (see below), whose sum is σ = 244645591750560. Its totient is φ = 94041327247200.

The previous prime is 155212023130453. The next prime is 155212023130511. The reversal of 155212023130461 is 164031320212551.

155212023130461 is a `hidden beast` number, since 1 + 5 + 5 + 21 + 20 + 23 + 130 + 461 = 666.

It is not a de Polignac number, because 155212023130461 - 2³ = 155212023130453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155212023130061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221027331 + ... + 221728448.

It is an arithmetic number, because the mean of its divisors is an integer number (10193566322940).

Almost surely, 2^{155212023130461} is an apocalyptic number.

155212023130461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155212023130461 is a deficient number, since it is larger than the sum of its proper divisors (89433568620099).

155212023130461 is a wasteful number, since it uses less digits than its factorization.

155212023130461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442759337 (or 442759334 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 155212023130461 in words is "one hundred fifty-five trillion, two hundred twelve billion, twenty-three million, one hundred thirty thousand, four hundred sixty-one".