22157747756 has 12 divisors (see below), whose sum is σ = 38786681640. Its totient is φ = 11075838720.

The previous prime is 22157747753. The next prime is 22157747761. The reversal of 22157747756 is 65774775122.

It is a junction number, because it is equal to n+sod(n) for n = 22157747698 and 22157747707.

It is not an unprimeable number, because it can be changed into a prime (22157747753) 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, 742325 + ... + 771596.

It is an arithmetic number, because the mean of its divisors is an integer number (3232223470).

Almost surely, 2^22157747756 is an apocalyptic number.

It is an amenable number.

22157747756 is a deficient number, since it is larger than the sum of its proper divisors (16628933884).

22157747756 is a wasteful number, since it uses less digits than its factorization.

22157747756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517584 (or 1517582 counting only the distinct ones).

The product of its digits is 5762400, while the sum is 53.

The spelling of 22157747756 in words is "twenty-two billion, one hundred fifty-seven million, seven hundred forty-seven thousand, seven hundred fifty-six".