23140545551 has 8 divisors (see below), whose sum is σ = 24078803904. Its totient is φ = 22220866720.

The previous prime is 23140545529. The next prime is 23140545581. The reversal of 23140545551 is 15554504132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23140545551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140545521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4642340 + ... + 4647321.

It is an arithmetic number, because the mean of its divisors is an integer number (3009850488).

Almost surely, 2^23140545551 is an apocalyptic number.

23140545551 is a deficient number, since it is larger than the sum of its proper divisors (938258353).

23140545551 is an equidigital number, since it uses as much as digits as its factorization.

23140545551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9289761.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 23140545551 in words is "twenty-three billion, one hundred forty million, five hundred forty-five thousand, five hundred fifty-one".