23820042366 has 24 divisors (see below), whose sum is σ = 51615639504. Its totient is φ = 7939160640.

The previous prime is 23820042361. The next prime is 23820042377. The reversal of 23820042366 is 66324002832.

23820042366 is a `hidden beast` number, since 23 + 8 + 200 + 423 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23820042366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23820042361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114006 + ... + 246246.

It is an arithmetic number, because the mean of its divisors is an integer number (2150651646).

Almost surely, 2^23820042366 is an apocalyptic number.

23820042366 is an abundant number, since it is smaller than the sum of its proper divisors (27795597138).

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

23820042366 is a wasteful number, since it uses less digits than its factorization.

23820042366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142256 (or 142253 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 23820042366 in words is "twenty-three billion, eight hundred twenty million, forty-two thousand, three hundred sixty-six".