23644566142 has 4 divisors (see below), whose sum is σ = 35466849216. Its totient is φ = 11822283070.

The previous prime is 23644566137. The next prime is 23644566151. The reversal of 23644566142 is 24166544632.

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, 5911141534 + ... + 5911141537.

It is an arithmetic number, because the mean of its divisors is an integer number (8866712304).

Almost surely, 2^23644566142 is an apocalyptic number.

23644566142 is a deficient number, since it is larger than the sum of its proper divisors (11822283074).

23644566142 is a wasteful number, since it uses less digits than its factorization.

23644566142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11822283073.

The product of its digits is 829440, while the sum is 43.

The spelling of 23644566142 in words is "twenty-three billion, six hundred forty-four million, five hundred sixty-six thousand, one hundred forty-two".