22406311157 has 4 divisors (see below), whose sum is σ = 22468724640. Its totient is φ = 22343897676.

The previous prime is 22406311121. The next prime is 22406311159. The reversal of 22406311157 is 75111360422.

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 22406311157 - 2¹⁶ = 22406245621 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 (22406311159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31206203 + ... + 31206920.

It is an arithmetic number, because the mean of its divisors is an integer number (5617181160).

Almost surely, 2^22406311157 is an apocalyptic number.

It is an amenable number.

22406311157 is a deficient number, since it is larger than the sum of its proper divisors (62413483).

22406311157 is an equidigital number, since it uses as much as digits as its factorization.

22406311157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62413482.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 22406311157 its reverse (75111360422), we get a palindrome (97517671579).

The spelling of 22406311157 in words is "twenty-two billion, four hundred six million, three hundred eleven thousand, one hundred fifty-seven".