22351560617 has 4 divisors (see below), whose sum is σ = 22352591556. Its totient is φ = 22350529680.

The previous prime is 22351560607. The next prime is 22351560631. The reversal of 22351560617 is 71606515322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71606515322 = 2 ⋅35803257661.

It can be written as a sum of positive squares in 2 ways, for example, as 17705229721 + 4646330896 = 133061^2 + 68164^2 .

It is a cyclic number.

It is not a de Polignac number, because 22351560617 - 2¹⁶ = 22351495081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22351560607) 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, 482234 + ... + 526547.

It is an arithmetic number, because the mean of its divisors is an integer number (5588147889).

Almost surely, 2^22351560617 is an apocalyptic number.

It is an amenable number.

22351560617 is a deficient number, since it is larger than the sum of its proper divisors (1030939).

22351560617 is a wasteful number, since it uses less digits than its factorization.

22351560617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030938.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 22351560617 in words is "twenty-two billion, three hundred fifty-one million, five hundred sixty thousand, six hundred seventeen".