22546772251 has 8 divisors (see below), whose sum is σ = 23172749600. Its totient is φ = 21921668928.

The previous prime is 22546772249. The next prime is 22546772267. The reversal of 22546772251 is 15227764522.

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 22546772251 - 2¹ = 22546772249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22546772198 and 22546772207.

It is not an unprimeable number, because it can be changed into a prime (22546776251) 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, 166026 + ... + 269551.

It is an arithmetic number, because the mean of its divisors is an integer number (2896593700).

Almost surely, 2^22546772251 is an apocalyptic number.

22546772251 is a deficient number, since it is larger than the sum of its proper divisors (625977349).

22546772251 is a wasteful number, since it uses less digits than its factorization.

22546772251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437013.

The product of its digits is 470400, while the sum is 43.

The spelling of 22546772251 in words is "twenty-two billion, five hundred forty-six million, seven hundred seventy-two thousand, two hundred fifty-one".