136036400435661 has 16 divisors (see below), whose sum is σ = 197871495694848. Its totient is φ = 82446150049200.

The previous prime is 136036400435623. The next prime is 136036400435687. The reversal of 136036400435661 is 166534004630631.

It is a happy number.

It is not a de Polignac number, because 136036400435661 - 2²² = 136036396241357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136036400435661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136036400435561) 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, 15674146 + ... + 22754156.

It is an arithmetic number, because the mean of its divisors is an integer number (12366968480928).

Almost surely, 2^{136036400435661} is an apocalyptic number.

136036400435661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136036400435661 is a deficient number, since it is larger than the sum of its proper divisors (61835095259187).

136036400435661 is a wasteful number, since it uses less digits than its factorization.

136036400435661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662272.

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 136036400435661 in words is "one hundred thirty-six trillion, thirty-six billion, four hundred million, four hundred thirty-five thousand, six hundred sixty-one".