23522405403661 has 8 divisors (see below), whose sum is σ = 23844733104960. Its totient is φ = 23200080485472.

The previous prime is 23522405403659. The next prime is 23522405403737. The reversal of 23522405403661 is 16630450422532.

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

It is a cyclic number.

It is not a de Polignac number, because 23522405403661 - 2¹ = 23522405403659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23522405404661) 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, 20873496 + ... + 21971518.

It is an arithmetic number, because the mean of its divisors is an integer number (2980591638120).

Almost surely, 2^{23522405403661} is an apocalyptic number.

It is an amenable number.

23522405403661 is a deficient number, since it is larger than the sum of its proper divisors (322327701299).

23522405403661 is a wasteful number, since it uses less digits than its factorization.

23522405403661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391555.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 23522405403661 in words is "twenty-three trillion, five hundred twenty-two billion, four hundred five million, four hundred three thousand, six hundred sixty-one".