22451666451 has 8 divisors (see below), whose sum is σ = 29936640000. Its totient is φ = 14967235272.

The previous prime is 22451666441. The next prime is 22451666473. The reversal of 22451666451 is 15466615422.

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

It is not a de Polignac number, because 22451666451 - 2⁷ = 22451666323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22451666441) 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, 26451 + ... + 213548.

It is an arithmetic number, because the mean of its divisors is an integer number (3742080000).

Almost surely, 2^22451666451 is an apocalyptic number.

22451666451 is a deficient number, since it is larger than the sum of its proper divisors (7484973549).

22451666451 is a wasteful number, since it uses less digits than its factorization.

22451666451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271185.

The product of its digits is 345600, while the sum is 42.

The spelling of 22451666451 in words is "twenty-two billion, four hundred fifty-one million, six hundred sixty-six thousand, four hundred fifty-one".