23661662543131 has 8 divisors (see below), whose sum is σ = 24477679828800. Its totient is φ = 22845651783360.

The previous prime is 23661662543053. The next prime is 23661662543159. The reversal of 23661662543131 is 13134526616632.

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 23661662543131 - 2¹⁹ = 23661662018843 is a prime.

It is a super-2 number, since 2×23661662543131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23661662546131) 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, 6418471 + ... + 9408511.

It is an arithmetic number, because the mean of its divisors is an integer number (3059709978600).

Almost surely, 2^{23661662543131} is an apocalyptic number.

23661662543131 is a deficient number, since it is larger than the sum of its proper divisors (816017285669).

23661662543131 is a wasteful number, since it uses less digits than its factorization.

23661662543131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262949.

The product of its digits is 2799360, while the sum is 49.

The spelling of 23661662543131 in words is "twenty-three trillion, six hundred sixty-one billion, six hundred sixty-two million, five hundred forty-three thousand, one hundred thirty-one".