22061622232564 has 6 divisors (see below), whose sum is σ = 38607838906994. Its totient is φ = 11030811116280.

The previous prime is 22061622232561. The next prime is 22061622232571. The reversal of 22061622232564 is 46523222616022.

It can be written as a sum of positive squares in only one way, i.e., 20151946984464 + 1909675248100 = 4489092^2 + 1381910^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22061622232564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22061622232561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757702779067 + ... + 2757702779074.

Almost surely, 2^{22061622232564} is an apocalyptic number.

It is an amenable number.

22061622232564 is a deficient number, since it is larger than the sum of its proper divisors (16546216674430).

22061622232564 is a wasteful number, since it uses less digits than its factorization.

22061622232564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515405558145 (or 5515405558143 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 22061622232564 its reverse (46523222616022), we get a palindrome (68584844848586).

The spelling of 22061622232564 in words is "twenty-two trillion, sixty-one billion, six hundred twenty-two million, two hundred thirty-two thousand, five hundred sixty-four".