20042722556 has 24 divisors (see below), whose sum is σ = 36344738640. Its totient is φ = 9659664000.

The previous prime is 20042722519. The next prime is 20042722597. The reversal of 20042722556 is 65522724002.

It is a happy number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 74030 + ... + 213461.

It is an arithmetic number, because the mean of its divisors is an integer number (1514364110).

Almost surely, 2^20042722556 is an apocalyptic number.

It is an amenable number.

20042722556 is a deficient number, since it is larger than the sum of its proper divisors (16302016084).

20042722556 is a wasteful number, since it uses less digits than its factorization.

20042722556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288125 (or 288123 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 20042722556 in words is "twenty billion, forty-two million, seven hundred twenty-two thousand, five hundred fifty-six".