22651172149 has 4 divisors (see below), whose sum is σ = 22752747136. Its totient is φ = 22549597164.

The previous prime is 22651172111. The next prime is 22651172153. The reversal of 22651172149 is 94127115622.

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 22651172149 - 2¹³ = 22651163957 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 (22651172189) 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, 50787159 + ... + 50787604.

It is an arithmetic number, because the mean of its divisors is an integer number (5688186784).

Almost surely, 2^22651172149 is an apocalyptic number.

It is an amenable number.

22651172149 is a deficient number, since it is larger than the sum of its proper divisors (101574987).

22651172149 is a wasteful number, since it uses less digits than its factorization.

22651172149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101574986.

The product of its digits is 60480, while the sum is 40.

The spelling of 22651172149 in words is "twenty-two billion, six hundred fifty-one million, one hundred seventy-two thousand, one hundred forty-nine".