20116772225762 has 8 divisors (see below), whose sum is σ = 30669833065692. Its totient is φ = 9893494537200.

The previous prime is 20116772225729. The next prime is 20116772225789. The reversal of 20116772225762 is 26752227761102.

It can be written as a sum of positive squares in 2 ways, for example, as 16662307638601 + 3454464587161 = 4081949^2 + 1858619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20116772225762² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20116772225762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82445787689 + ... + 82445787932.

Almost surely, 2^{20116772225762} is an apocalyptic number.

20116772225762 is a deficient number, since it is larger than the sum of its proper divisors (10553060839930).

20116772225762 is a wasteful number, since it uses less digits than its factorization.

20116772225762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164891575684.

The product of its (nonzero) digits is 1975680, while the sum is 50.

Adding to 20116772225762 its reverse (26752227761102), we get a palindrome (46868999986864).

The spelling of 20116772225762 in words is "twenty trillion, one hundred sixteen billion, seven hundred seventy-two million, two hundred twenty-five thousand, seven hundred sixty-two".