101565555136 has 28 divisors (see below), whose sum is σ = 204552278728. Its totient is φ = 50024823552.

The previous prime is 101565555107. The next prime is 101565555193. The reversal of 101565555136 is 631555565101.

It is a junction number, because it is equal to n+sod(n) for n = 101565555092 and 101565555101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11838711 + ... + 11847286.

It is an arithmetic number, because the mean of its divisors is an integer number (7305438526).

Almost surely, 2^101565555136 is an apocalyptic number.

101565555136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

101565555136 is an abundant number, since it is smaller than the sum of its proper divisors (102986723592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101565555136 is an equidigital number, since it uses as much as digits as its factorization.

101565555136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23686076 (or 23686066 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 43.

The spelling of 101565555136 in words is "one hundred one billion, five hundred sixty-five million, five hundred fifty-five thousand, one hundred thirty-six".