155230763157 has 6 divisors (see below), whose sum is σ = 224222213462. Its totient is φ = 103487175432.

The previous prime is 155230763153. The next prime is 155230763213. The reversal of 155230763157 is 751367032551.

155230763157 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 3 + 0 + 7 + 631 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 153067955121 + 2162808036 = 391239^2 + 46506^2 .

It is not a de Polignac number, because 155230763157 - 2² = 155230763153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155230763153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8623931278 + ... + 8623931295.

Almost surely, 2^155230763157 is an apocalyptic number.

It is an amenable number.

155230763157 is a deficient number, since it is larger than the sum of its proper divisors (68991450305).

155230763157 is a wasteful number, since it uses less digits than its factorization.

155230763157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17247862579 (or 17247862576 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The spelling of 155230763157 in words is "one hundred fifty-five billion, two hundred thirty million, seven hundred sixty-three thousand, one hundred fifty-seven".