20716890722 has 16 divisors (see below), whose sum is σ = 33941289600. Its totient is φ = 9405401040.

The previous prime is 20716890713. The next prime is 20716890739. The reversal of 20716890722 is 22709861702.

It is a super-2 number, since 2×20716890722² (a number of 21 digits) contains 22 as substring.

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, 549722 + ... + 586197.

It is an arithmetic number, because the mean of its divisors is an integer number (2121330600).

Almost surely, 2^20716890722 is an apocalyptic number.

20716890722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20716890722 is a deficient number, since it is larger than the sum of its proper divisors (13224398878).

20716890722 is a wasteful number, since it uses less digits than its factorization.

20716890722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136761.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 20716890722 in words is "twenty billion, seven hundred sixteen million, eight hundred ninety thousand, seven hundred twenty-two".