23420154455 has 32 divisors (see below), whose sum is σ = 29785079808. Its totient is φ = 17643225600.

The previous prime is 23420154449. The next prime is 23420154463. The reversal of 23420154455 is 55445102432.

It is not a de Polignac number, because 23420154455 - 2⁶ = 23420154391 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1907135 + ... + 1919375.

It is an arithmetic number, because the mean of its divisors is an integer number (930783744).

Almost surely, 2^23420154455 is an apocalyptic number.

23420154455 is a deficient number, since it is larger than the sum of its proper divisors (6364925353).

23420154455 is a wasteful number, since it uses less digits than its factorization.

23420154455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12527.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 23420154455 its reverse (55445102432), we get a palindrome (78865256887).

The spelling of 23420154455 in words is "twenty-three billion, four hundred twenty million, one hundred fifty-four thousand, four hundred fifty-five".