22154451346 has 8 divisors (see below), whose sum is σ = 33699729024. Its totient is φ = 10921208340.

The previous prime is 22154451337. The next prime is 22154451349. The reversal of 22154451346 is 64315445122.

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

It is not an unprimeable number, because it can be changed into a prime (22154451349) 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, 78008490 + ... + 78008773.

It is an arithmetic number, because the mean of its divisors is an integer number (4212466128).

Almost surely, 2^22154451346 is an apocalyptic number.

22154451346 is a deficient number, since it is larger than the sum of its proper divisors (11545277678).

22154451346 is a wasteful number, since it uses less digits than its factorization.

22154451346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156017336.

The product of its digits is 115200, while the sum is 37.

Adding to 22154451346 its reverse (64315445122), we get a palindrome (86469896468).

The spelling of 22154451346 in words is "twenty-two billion, one hundred fifty-four million, four hundred fifty-one thousand, three hundred forty-six".