22151515423 has 8 divisors (see below), whose sum is σ = 23458023792. Its totient is φ = 20845393536.

The previous prime is 22151515357. The next prime is 22151515439. The reversal of 22151515423 is 32451515122.

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

It is a cyclic number.

It is not a de Polignac number, because 22151515423 - 2⁹ = 22151514911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151515453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25836 + ... + 212062.

It is an arithmetic number, because the mean of its divisors is an integer number (2932252974).

Almost surely, 2^22151515423 is an apocalyptic number.

22151515423 is a deficient number, since it is larger than the sum of its proper divisors (1306508369).

22151515423 is a wasteful number, since it uses less digits than its factorization.

22151515423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193241.

The product of its digits is 12000, while the sum is 31.

The spelling of 22151515423 in words is "twenty-two billion, one hundred fifty-one million, five hundred fifteen thousand, four hundred twenty-three".