135890575661 has 16 divisors (see below), whose sum is σ = 138089128320. Its totient is φ = 133711162560.

The previous prime is 135890575609. The next prime is 135890575727. The reversal of 135890575661 is 166575098531.

It is a cyclic number.

It is not a de Polignac number, because 135890575661 - 2²² = 135886381357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135890575597 and 135890575606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135890575061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18532766 + ... + 18540096.

It is an arithmetic number, because the mean of its divisors is an integer number (8630570520).

Almost surely, 2^135890575661 is an apocalyptic number.

It is an amenable number.

135890575661 is a deficient number, since it is larger than the sum of its proper divisors (2198552659).

135890575661 is a wasteful number, since it uses less digits than its factorization.

135890575661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 6804000, while the sum is 56.

The spelling of 135890575661 in words is "one hundred thirty-five billion, eight hundred ninety million, five hundred seventy-five thousand, six hundred sixty-one".