101561255264635 has 8 divisors (see below), whose sum is σ = 129042536101056. Its totient is φ = 76469651022720.

The previous prime is 101561255264617. The next prime is 101561255264639. The reversal of 101561255264635 is 536462552165101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101561255264635 - 2⁵ = 101561255264603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101561255264639) 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 7 ways as a sum of consecutive naturals, for example, 597419148531 + ... + 597419148700.

It is an arithmetic number, because the mean of its divisors is an integer number (16130317012632).

Almost surely, 2^{101561255264635} is an apocalyptic number.

101561255264635 is a deficient number, since it is larger than the sum of its proper divisors (27481280836421).

101561255264635 is a wasteful number, since it uses less digits than its factorization.

101561255264635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194838297253.

The product of its (nonzero) digits is 6480000, while the sum is 52.

The spelling of 101561255264635 in words is "one hundred one trillion, five hundred sixty-one billion, two hundred fifty-five million, two hundred sixty-four thousand, six hundred thirty-five".