22146451149 has 16 divisors (see below), whose sum is σ = 30198136320. Its totient is φ = 14432898480.

The previous prime is 22146451147. The next prime is 22146451177. The reversal of 22146451149 is 94115464122.

It is not a de Polignac number, because 22146451149 - 2¹ = 22146451147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22146451147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394209 + ... + 446870.

It is an arithmetic number, because the mean of its divisors is an integer number (1887383520).

Almost surely, 2^22146451149 is an apocalyptic number.

It is an amenable number.

22146451149 is a deficient number, since it is larger than the sum of its proper divisors (8051685171).

22146451149 is a wasteful number, since it uses less digits than its factorization.

22146451149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841280.

The product of its digits is 69120, while the sum is 39.

The spelling of 22146451149 in words is "twenty-two billion, one hundred forty-six million, four hundred fifty-one thousand, one hundred forty-nine".