22146451148 has 24 divisors (see below), whose sum is σ = 40893518400. Its totient is φ = 10465372368.

The previous prime is 22146451147. The next prime is 22146451177. The reversal of 22146451148 is 84115464122.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (22146451147) 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, 315890 + ... + 379577.

It is an arithmetic number, because the mean of its divisors is an integer number (1703896600).

Almost surely, 2^22146451148 is an apocalyptic number.

It is an amenable number.

22146451148 is a deficient number, since it is larger than the sum of its proper divisors (18747067252).

22146451148 is a wasteful number, since it uses less digits than its factorization.

22146451148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695909 (or 695907 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The spelling of 22146451148 in words is "twenty-two billion, one hundred forty-six million, four hundred fifty-one thousand, one hundred forty-eight".