18800158157 has 8 divisors (see below), whose sum is σ = 20515117440. Its totient is φ = 17086174560.

The previous prime is 18800158151. The next prime is 18800158177. The reversal of 18800158157 is 75185100881.

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

It is a cyclic number.

It is not a de Polignac number, because 18800158157 - 2²² = 18795963853 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 (18800158151) 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, 203333 + ... + 280970.

It is an arithmetic number, because the mean of its divisors is an integer number (2564389680).

Almost surely, 2^18800158157 is an apocalyptic number.

It is an amenable number.

18800158157 is a deficient number, since it is larger than the sum of its proper divisors (1714959283).

18800158157 is a wasteful number, since it uses less digits than its factorization.

18800158157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487843.

The product of its (nonzero) digits is 89600, while the sum is 44.

The spelling of 18800158157 in words is "eighteen billion, eight hundred million, one hundred fifty-eight thousand, one hundred fifty-seven".