117100605561 has 4 divisors (see below), whose sum is σ = 156134140752. Its totient is φ = 78067070372.

The previous prime is 117100605551. The next prime is 117100605563. The reversal of 117100605561 is 165506001711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117100605561 - 2³⁵ = 82740867193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117100605563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19516767591 + ... + 19516767596.

It is an arithmetic number, because the mean of its divisors is an integer number (39033535188).

Almost surely, 2^117100605561 is an apocalyptic number.

It is an amenable number.

117100605561 is a deficient number, since it is larger than the sum of its proper divisors (39033535191).

117100605561 is an equidigital number, since it uses as much as digits as its factorization.

117100605561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39033535190.

The product of its (nonzero) digits is 6300, while the sum is 33.

The spelling of 117100605561 in words is "one hundred seventeen billion, one hundred million, six hundred five thousand, five hundred sixty-one".