23171666025464 has 32 divisors (see below), whose sum is σ = 47396775294000. Its totient is φ = 10532534200320.

The previous prime is 23171666025463. The next prime is 23171666025479. The reversal of 23171666025464 is 46452066617132.

It is a super-2 number, since 2×23171666025464² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23171666025463) 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, 40485962 + ... + 41054310.

Almost surely, 2^{23171666025464} is an apocalyptic number.

It is an amenable number.

23171666025464 is an abundant number, since it is smaller than the sum of its proper divisors (24225109268536).

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

23171666025464 is a wasteful number, since it uses less digits than its factorization.

23171666025464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031663 (or 1031659 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 23171666025464 in words is "twenty-three trillion, one hundred seventy-one billion, six hundred sixty-six million, twenty-five thousand, four hundred sixty-four".