155506500425223 has 40 divisors (see below), whose sum is σ = 242633130854400. Its totient is φ = 99068122902672.

The previous prime is 155506500425207. The next prime is 155506500425249. The reversal of 155506500425223 is 322524005605551.

155506500425223 is a `hidden beast` number, since 1 + 5 + 5 + 50 + 6 + 500 + 42 + 52 + 2 + 3 = 666.

It is not a de Polignac number, because 155506500425223 - 2⁴ = 155506500425207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155506500425203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38233263 + ... + 42104576.

It is an arithmetic number, because the mean of its divisors is an integer number (6065828271360).

Almost surely, 2^{155506500425223} is an apocalyptic number.

155506500425223 is a deficient number, since it is larger than the sum of its proper divisors (87126630429177).

155506500425223 is a wasteful number, since it uses less digits than its factorization.

155506500425223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80338913 (or 80338904 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 155506500425223 in words is "one hundred fifty-five trillion, five hundred six billion, five hundred million, four hundred twenty-five thousand, two hundred twenty-three".