65123655564423 has 8 divisors (see below), whose sum is σ = 86833563884928. Its totient is φ = 43414758810104.

The previous prime is 65123655564419. The next prime is 65123655564431. The reversal of 65123655564423 is 32446555632156.

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 65123655564423 - 2² = 65123655564419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65123655564433) 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, 252741315 + ... + 252998852.

It is an arithmetic number, because the mean of its divisors is an integer number (10854195485616).

Almost surely, 2^{65123655564423} is an apocalyptic number.

65123655564423 is a deficient number, since it is larger than the sum of its proper divisors (21709908320505).

65123655564423 is a wasteful number, since it uses less digits than its factorization.

65123655564423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505783093.

The product of its digits is 77760000, while the sum is 57.

The spelling of 65123655564423 in words is "sixty-five trillion, one hundred twenty-three billion, six hundred fifty-five million, five hundred sixty-four thousand, four hundred twenty-three".