22868155157 has 4 divisors (see below), whose sum is σ = 22870876620. Its totient is φ = 22865433696.

The previous prime is 22868155097. The next prime is 22868155159. The reversal of 22868155157 is 75155186822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5728370596 + 17139784561 = 75686^2 + 130919^2 .

It is a cyclic number.

It is not a de Polignac number, because 22868155157 - 2⁸ = 22868154901 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 (22868155159) 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, 1348088 + ... + 1364945.

It is an arithmetic number, because the mean of its divisors is an integer number (5717719155).

Almost surely, 2^22868155157 is an apocalyptic number.

It is an amenable number.

22868155157 is a deficient number, since it is larger than the sum of its proper divisors (2721463).

22868155157 is an equidigital number, since it uses as much as digits as its factorization.

22868155157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721462.

The product of its digits is 1344000, while the sum is 50.

The spelling of 22868155157 in words is "twenty-two billion, eight hundred sixty-eight million, one hundred fifty-five thousand, one hundred fifty-seven".