22145320154 has 16 divisors (see below), whose sum is σ = 35065370880. Its totient is φ = 10460165760.

The previous prime is 22145320139. The next prime is 22145320213. The reversal of 22145320154 is 45102354122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812042 + ... + 838869.

It is an arithmetic number, because the mean of its divisors is an integer number (2191585680).

Almost surely, 2^22145320154 is an apocalyptic number.

22145320154 is a deficient number, since it is larger than the sum of its proper divisors (12920050726).

22145320154 is a wasteful number, since it uses less digits than its factorization.

22145320154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651285.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 22145320154 its reverse (45102354122), we get a palindrome (67247674276).

The spelling of 22145320154 in words is "twenty-two billion, one hundred forty-five million, three hundred twenty thousand, one hundred fifty-four".