23220402444155 has 16 divisors (see below), whose sum is σ = 31893446787840. Its totient is φ = 15898399958112.

The previous prime is 23220402444143. The next prime is 23220402444157. The reversal of 23220402444155 is 55144420402232.

It is not a de Polignac number, because 23220402444155 - 2¹⁶ = 23220402378619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23220402444157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503345729 + ... + 503391858.

It is an arithmetic number, because the mean of its divisors is an integer number (1993340424240).

Almost surely, 2^{23220402444155} is an apocalyptic number.

23220402444155 is a deficient number, since it is larger than the sum of its proper divisors (8673044343685).

23220402444155 is a wasteful number, since it uses less digits than its factorization.

23220402444155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006738258.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 23220402444155 its reverse (55144420402232), we get a palindrome (78364822846387).

The spelling of 23220402444155 in words is "twenty-three trillion, two hundred twenty billion, four hundred two million, four hundred forty-four thousand, one hundred fifty-five".