22159147731 has 64 divisors (see below), whose sum is σ = 35467407360. Its totient is φ = 12043624320.

The previous prime is 22159147693. The next prime is 22159147753. The reversal of 22159147731 is 13774195122.

It is not a de Polignac number, because 22159147731 - 2¹³ = 22159139539 is a prime.

It is a super-3 number, since 3×22159147731³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22159107731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6650736 + ... + 6654066.

It is an arithmetic number, because the mean of its divisors is an integer number (554178240).

Almost surely, 2^22159147731 is an apocalyptic number.

22159147731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22159147731 is a deficient number, since it is larger than the sum of its proper divisors (13308259629).

22159147731 is a wasteful number, since it uses less digits than its factorization.

22159147731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576.

The product of its digits is 105840, while the sum is 42.

The spelling of 22159147731 in words is "twenty-two billion, one hundred fifty-nine million, one hundred forty-seven thousand, seven hundred thirty-one".