101157555149 has 12 divisors (see below), whose sum is σ = 120853429884. Its totient is φ = 84363056064.

The previous prime is 101157555143. The next prime is 101157555167. The reversal of 101157555149 is 941555751101.

It can be written as a sum of positive squares in 2 ways, for example, as 97691878249 + 3465676900 = 312557^2 + 58870^2 .

It is not a de Polignac number, because 101157555149 - 2⁸ = 101157554893 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 (101157555143) 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 11 ways as a sum of consecutive naturals, for example, 27896024 + ... + 27899649.

It is an arithmetic number, because the mean of its divisors is an integer number (10071119157).

Almost surely, 2^101157555149 is an apocalyptic number.

It is an amenable number.

101157555149 is a deficient number, since it is larger than the sum of its proper divisors (19695874735).

101157555149 is an equidigital number, since it uses as much as digits as its factorization.

101157555149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55795724 (or 55795717 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 44.

The spelling of 101157555149 in words is "one hundred one billion, one hundred fifty-seven million, five hundred fifty-five thousand, one hundred forty-nine".