23205553400 has 48 divisors (see below), whose sum is σ = 53982768840. Its totient is φ = 9277084800.

The previous prime is 23205553363. The next prime is 23205553421. The reversal of 23205553400 is 435550232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341027 + ... + 403373.

Almost surely, 2^23205553400 is an apocalyptic number.

23205553400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23205553400 is an abundant number, since it is smaller than the sum of its proper divisors (30777215440).

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

23205553400 is a wasteful number, since it uses less digits than its factorization.

23205553400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64224 (or 64215 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

The spelling of 23205553400 in words is "twenty-three billion, two hundred five million, five hundred fifty-three thousand, four hundred".