20881044662 has 16 divisors (see below), whose sum is σ = 31998497472. Its totient is φ = 10215024960.

The previous prime is 20881044643. The next prime is 20881044671. The reversal of 20881044662 is 26644018802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264098 + ... + 333930.

It is an arithmetic number, because the mean of its divisors is an integer number (1999906092).

Almost surely, 2^20881044662 is an apocalyptic number.

20881044662 is a deficient number, since it is larger than the sum of its proper divisors (11117452810).

20881044662 is a wasteful number, since it uses less digits than its factorization.

20881044662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73063.

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 20881044662 in words is "twenty billion, eight hundred eighty-one million, forty-four thousand, six hundred sixty-two".