23101640142566 has 4 divisors (see below), whose sum is σ = 34652460213852. Its totient is φ = 11550820071282.

The previous prime is 23101640142541. The next prime is 23101640142571. The reversal of 23101640142566 is 66524104610132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775410035640 + ... + 5775410035643.

It is an arithmetic number, because the mean of its divisors is an integer number (8663115053463).

Almost surely, 2^{23101640142566} is an apocalyptic number.

23101640142566 is a deficient number, since it is larger than the sum of its proper divisors (11550820071286).

23101640142566 is a wasteful number, since it uses less digits than its factorization.

23101640142566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11550820071285.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 23101640142566 its reverse (66524104610132), we get a palindrome (89625744752698).

The spelling of 23101640142566 in words is "twenty-three trillion, one hundred one billion, six hundred forty million, one hundred forty-two thousand, five hundred sixty-six".