22551302157 has 8 divisors (see below), whose sum is σ = 30069898560. Its totient is φ = 15033453600.

The previous prime is 22551302149. The next prime is 22551302173. The reversal of 22551302157 is 75120315522.

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

It is not a de Polignac number, because 22551302157 - 2³ = 22551302149 is a prime.

It is a super-2 number, since 2×22551302157² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551302117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112344 + ... + 240257.

It is an arithmetic number, because the mean of its divisors is an integer number (3758737320).

Almost surely, 2^22551302157 is an apocalyptic number.

It is an amenable number.

22551302157 is a deficient number, since it is larger than the sum of its proper divisors (7518596403).

22551302157 is a wasteful number, since it uses less digits than its factorization.

22551302157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373923.

The product of its (nonzero) digits is 21000, while the sum is 33.

Adding to 22551302157 its reverse (75120315522), we get a palindrome (97671617679).

The spelling of 22551302157 in words is "twenty-two billion, five hundred fifty-one million, three hundred two thousand, one hundred fifty-seven".