101157555157 has 4 divisors (see below), whose sum is σ = 107107999596. Its totient is φ = 95207110720.

The previous prime is 101157555143. The next prime is 101157555167. The reversal of 101157555157 is 751555751101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28511673316 + 72645881841 = 168854^2 + 269529^2 .

It is a cyclic number.

It is not a de Polignac number, because 101157555157 - 2²³ = 101149166549 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 (101157555167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2975222194 + ... + 2975222227.

It is an arithmetic number, because the mean of its divisors is an integer number (26776999899).

Almost surely, 2^101157555157 is an apocalyptic number.

101157555157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

101157555157 is a deficient number, since it is larger than the sum of its proper divisors (5950444439).

101157555157 is an equidigital number, since it uses as much as digits as its factorization.

101157555157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950444438.

The product of its (nonzero) digits is 153125, while the sum is 43.

The spelling of 101157555157 in words is "one hundred one billion, one hundred fifty-seven million, five hundred fifty-five thousand, one hundred fifty-seven".