23455451222145 has 64 divisors (see below), whose sum is σ = 42152364656640. Its totient is φ = 12374153236224.

The previous prime is 23455451222129. The next prime is 23455451222179. The reversal of 23455451222145 is 54122215455432.

23455451222145 is a `hidden beast` number, since 2 + 3 + 4 + 55 + 451 + 2 + 2 + 2 + 145 = 666.

It is not a de Polignac number, because 23455451222145 - 2⁴ = 23455451222129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23455451222145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2245207 + ... + 7207763.

It is an arithmetic number, because the mean of its divisors is an integer number (658630697760).

Almost surely, 2^{23455451222145} is an apocalyptic number.

It is an amenable number.

23455451222145 is a deficient number, since it is larger than the sum of its proper divisors (18696913434495).

23455451222145 is a wasteful number, since it uses less digits than its factorization.

23455451222145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962951 (or 4962945 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 45.

Adding to 23455451222145 its reverse (54122215455432), we get a palindrome (77577666677577).

The spelling of 23455451222145 in words is "twenty-three trillion, four hundred fifty-five billion, four hundred fifty-one million, two hundred twenty-two thousand, one hundred forty-five".