23423121756666 has 48 divisors (see below), whose sum is σ = 51708608438760. Its totient is φ = 7660249459200.

The previous prime is 23423121756547. The next prime is 23423121756731. The reversal of 23423121756666 is 66665712132432.

It can be written as a sum of positive squares in 4 ways, for example, as 22526651750625 + 896470006041 = 4746225^2 + 946821^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59142390 + ... + 59537118.

Almost surely, 2^{23423121756666} is an apocalyptic number.

23423121756666 is an abundant number, since it is smaller than the sum of its proper divisors (28285486682094).

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

23423121756666 is a wasteful number, since it uses less digits than its factorization.

23423121756666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456991 (or 456988 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 23423121756666 in words is "twenty-three trillion, four hundred twenty-three billion, one hundred twenty-one million, seven hundred fifty-six thousand, six hundred sixty-six".