23234378581666 has 96 divisors (see below), whose sum is σ = 42168571788672. Its totient is φ = 9404035614720.

The previous prime is 23234378581619. The next prime is 23234378581769. The reversal of 23234378581666 is 66618587343232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23234378581598 and 23234378581607.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2283023170 + ... + 2283033346.

It is an arithmetic number, because the mean of its divisors is an integer number (439255956132).

Almost surely, 2^{23234378581666} is an apocalyptic number.

23234378581666 is a deficient number, since it is larger than the sum of its proper divisors (18934193207006).

23234378581666 is a wasteful number, since it uses less digits than its factorization.

23234378581666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11592 (or 11573 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 64.

The spelling of 23234378581666 in words is "twenty-three trillion, two hundred thirty-four billion, three hundred seventy-eight million, five hundred eighty-one thousand, six hundred sixty-six".