101561635830 has 32 divisors (see below), whose sum is σ = 243768940128. Its totient is φ = 27080768000.

The previous prime is 101561635793. The next prime is 101561635873. The reversal of 101561635830 is 38536165101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223150 + ... + 502910.

It is an arithmetic number, because the mean of its divisors is an integer number (7617779379).

Almost surely, 2^101561635830 is an apocalyptic number.

101561635830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101561635830 is an abundant number, since it is smaller than the sum of its proper divisors (142207304298).

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

101561635830 is a wasteful number, since it uses less digits than its factorization.

101561635830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291872.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 101561635830 in words is "one hundred one billion, five hundred sixty-one million, six hundred thirty-five thousand, eight hundred thirty".