20674563722 has 4 divisors (see below), whose sum is σ = 31011845586. Its totient is φ = 10337281860.

The previous prime is 20674563709. The next prime is 20674563737. The reversal of 20674563722 is 22736547602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16847780401 + 3826783321 = 129799^2 + 61861^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5168640929 + ... + 5168640932.

Almost surely, 2^20674563722 is an apocalyptic number.

20674563722 is a deficient number, since it is larger than the sum of its proper divisors (10337281864).

20674563722 is a wasteful number, since it uses less digits than its factorization.

20674563722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337281863.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 20674563722 in words is "twenty billion, six hundred seventy-four million, five hundred sixty-three thousand, seven hundred twenty-two".