24020805157 has 4 divisors (see below), whose sum is σ = 25285058080. Its totient is φ = 22756552236.

The previous prime is 24020805121. The next prime is 24020805191. The reversal of 24020805157 is 75150802042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24020805157 - 2²⁷ = 23886587429 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 (24020815157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632126433 + ... + 632126470.

It is an arithmetic number, because the mean of its divisors is an integer number (6321264520).

Almost surely, 2^24020805157 is an apocalyptic number.

It is an amenable number.

24020805157 is a deficient number, since it is larger than the sum of its proper divisors (1264252923).

24020805157 is a wasteful number, since it uses less digits than its factorization.

24020805157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264252922.

The product of its (nonzero) digits is 22400, while the sum is 34.

The spelling of 24020805157 in words is "twenty-four billion, twenty million, eight hundred five thousand, one hundred fifty-seven".