23561640435066 has 8 divisors (see below), whose sum is σ = 47123280870144. Its totient is φ = 7853880145020.

The previous prime is 23561640435061. The next prime is 23561640435079. The reversal of 23561640435066 is 66053404616532.

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

23561640435066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23561640435061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963470036250 + ... + 1963470036261.

It is an arithmetic number, because the mean of its divisors is an integer number (5890410108768).

Almost surely, 2^{23561640435066} is an apocalyptic number.

23561640435066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23561640435066 is a wasteful number, since it uses less digits than its factorization.

23561640435066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926940072516.

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 23561640435066 in words is "twenty-three trillion, five hundred sixty-one billion, six hundred forty million, four hundred thirty-five thousand, sixty-six".