157188436155 has 12 divisors (see below), whose sum is σ = 272459956080. Its totient is φ = 83833832592.

The previous prime is 157188436151. The next prime is 157188436189. The reversal of 157188436155 is 551634881751.

157188436155 is a `hidden beast` number, since 1 + 5 + 7 + 18 + 8 + 4 + 3 + 615 + 5 = 666.

It is not a de Polignac number, because 157188436155 - 2² = 157188436151 is a prime.

It is a super-2 number, since 2×157188436155² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157188436151) 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 11 ways as a sum of consecutive naturals, for example, 1746538135 + ... + 1746538224.

It is an arithmetic number, because the mean of its divisors is an integer number (22704996340).

Almost surely, 2^157188436155 is an apocalyptic number.

157188436155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157188436155 is a deficient number, since it is larger than the sum of its proper divisors (115271519925).

157188436155 is a wasteful number, since it uses less digits than its factorization.

157188436155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493076370 (or 3493076367 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 54.

The spelling of 157188436155 in words is "one hundred fifty-seven billion, one hundred eighty-eight million, four hundred thirty-six thousand, one hundred fifty-five".