623356255365563 has 8 divisors (see below), whose sum is σ = 623392504117680. Its totient is φ = 623320007355360.

The previous prime is 623356255365523. The next prime is 623356255365643. The reversal of 623356255365563 is 365563552653326.

It is a happy number.

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 623356255365563 - 2⁸ = 623356255365307 is a prime.

It is a super-2 number, since 2×623356255365563² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623356255365563.

It is not an unprimeable number, because it can be changed into a prime (623356255365523) 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, 2866832933 + ... + 2867050361.

It is an arithmetic number, because the mean of its divisors is an integer number (77924063014710).

Almost surely, 2^{623356255365563} is an apocalyptic number.

623356255365563 is a deficient number, since it is larger than the sum of its proper divisors (36248752117).

623356255365563 is a wasteful number, since it uses less digits than its factorization.

623356255365563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370957.

The product of its digits is 1312200000, while the sum is 65.

The spelling of 623356255365563 in words is "six hundred twenty-three trillion, three hundred fifty-six billion, two hundred fifty-five million, three hundred sixty-five thousand, five hundred sixty-three".