23405516110661 has 8 divisors (see below), whose sum is σ = 25581740569344. Its totient is φ = 21318117140160.

The previous prime is 23405516110631. The next prime is 23405516110663. The reversal of 23405516110661 is 16601161550432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23405516110661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405516110663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22206371495 + ... + 22206372548.

It is an arithmetic number, because the mean of its divisors is an integer number (3197717571168).

Almost surely, 2^{23405516110661} is an apocalyptic number.

It is an amenable number.

23405516110661 is a deficient number, since it is larger than the sum of its proper divisors (2176224458683).

23405516110661 is a wasteful number, since it uses less digits than its factorization.

23405516110661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44412744091.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 23405516110661 in words is "twenty-three trillion, four hundred five billion, five hundred sixteen million, one hundred ten thousand, six hundred sixty-one".