23153453505 has 80 divisors (see below), whose sum is σ = 51082800384. Its totient is φ = 9770232960.

The previous prime is 23153453473. The next prime is 23153453513. The reversal of 23153453505 is 50535435132.

23153453505 is a `hidden beast` number, since 2 + 3 + 153 + 453 + 50 + 5 = 666.

It is not a de Polignac number, because 23153453505 - 2⁵ = 23153453473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23153453505.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 277261 + ... + 350970.

Almost surely, 2^23153453505 is an apocalyptic number.

It is an amenable number.

23153453505 is an abundant number, since it is smaller than the sum of its proper divisors (27929346879).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23153453505 is a wasteful number, since it uses less digits than its factorization.

23153453505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628268 (or 628259 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 23153453505 its reverse (50535435132), we get a palindrome (73688888637).

The spelling of 23153453505 in words is "twenty-three billion, one hundred fifty-three million, four hundred fifty-three thousand, five hundred five".