20453363074 has 16 divisors (see below), whose sum is σ = 31943564856. Its totient is φ = 9813686400.

The previous prime is 20453363059. The next prime is 20453363131. The reversal of 20453363074 is 47036335402.

It can be written as a sum of positive squares in 4 ways, for example, as 1203743025 + 19249620049 = 34695^2 + 138743^2 .

It is a super-2 number, since 2×20453363074² (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, 2039517 + ... + 2049520.

Almost surely, 2^20453363074 is an apocalyptic number.

20453363074 is a deficient number, since it is larger than the sum of its proper divisors (11490201782).

20453363074 is a wasteful number, since it uses less digits than its factorization.

20453363074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089141.

The product of its (nonzero) digits is 181440, while the sum is 37.

Adding to 20453363074 its reverse (47036335402), we get a palindrome (67489698476).

The spelling of 20453363074 in words is "twenty billion, four hundred fifty-three million, three hundred sixty-three thousand, seventy-four".