23440245555 has 8 divisors (see below), whose sum is σ = 37504392912. Its totient is φ = 12501464288.

The previous prime is 23440245509. The next prime is 23440245559. The reversal of 23440245555 is 55554204432.

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 23440245555 - 2¹⁴ = 23440229171 is a prime.

It is a super-2 number, since 2×23440245555² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23440245559) 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, 781341504 + ... + 781341533.

It is an arithmetic number, because the mean of its divisors is an integer number (4688049114).

Almost surely, 2^23440245555 is an apocalyptic number.

23440245555 is a deficient number, since it is larger than the sum of its proper divisors (14064147357).

23440245555 is a wasteful number, since it uses less digits than its factorization.

23440245555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562683045.

The product of its (nonzero) digits is 480000, while the sum is 39.

Adding to 23440245555 its reverse (55554204432), we get a palindrome (78994449987).

The spelling of 23440245555 in words is "twenty-three billion, four hundred forty million, two hundred forty-five thousand, five hundred fifty-five".