20442557766862 has 32 divisors (see below), whose sum is σ = 38230732108800. Its totient is φ = 7964529936480.

The previous prime is 20442557766823. The next prime is 20442557766899. The reversal of 20442557766862 is 26866775524402.

It is a junction number, because it is equal to n+sod(n) for n = 20442557766794 and 20442557766803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11687248 + ... + 13322044.

It is an arithmetic number, because the mean of its divisors is an integer number (1194710378400).

Almost surely, 2^{20442557766862} is an apocalyptic number.

20442557766862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20442557766862 is a deficient number, since it is larger than the sum of its proper divisors (17788174341938).

20442557766862 is a wasteful number, since it uses less digits than its factorization.

20442557766862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716016.

The product of its (nonzero) digits is 270950400, while the sum is 64.

The spelling of 20442557766862 in words is "twenty trillion, four hundred forty-two billion, five hundred fifty-seven million, seven hundred sixty-six thousand, eight hundred sixty-two".