22156653562 has 4 divisors (see below), whose sum is σ = 33234980346. Its totient is φ = 11078326780.

The previous prime is 22156653517. The next prime is 22156653583. The reversal of 22156653562 is 26535665122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14994247401 + 7162406161 = 122451^2 + 84631^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5539163389 + ... + 5539163392.

Almost surely, 2^22156653562 is an apocalyptic number.

22156653562 is a deficient number, since it is larger than the sum of its proper divisors (11078326784).

22156653562 is a wasteful number, since it uses less digits than its factorization.

22156653562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11078326783.

The product of its digits is 648000, while the sum is 43.

The spelling of 22156653562 in words is "twenty-two billion, one hundred fifty-six million, six hundred fifty-three thousand, five hundred sixty-two".