20354823716 has 6 divisors (see below), whose sum is σ = 35620941510. Its totient is φ = 10177411856.

The previous prime is 20354823703. The next prime is 20354823719. The reversal of 20354823716 is 61732845302.

It can be written as a sum of positive squares in only one way, i.e., 12122890816 + 8231932900 = 110104^2 + 90730^2 .

It is not an unprimeable number, because it can be changed into a prime (20354823719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2544352961 + ... + 2544352968.

It is an arithmetic number, because the mean of its divisors is an integer number (5936823585).

Almost surely, 2^20354823716 is an apocalyptic number.

It is an amenable number.

20354823716 is a deficient number, since it is larger than the sum of its proper divisors (15266117794).

20354823716 is a wasteful number, since it uses less digits than its factorization.

20354823716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088705933 (or 5088705931 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 20354823716 in words is "twenty billion, three hundred fifty-four million, eight hundred twenty-three thousand, seven hundred sixteen".