20356372322 has 48 divisors (see below), whose sum is σ = 38270780856. Its totient is φ = 8038694400.

The previous prime is 20356372313. The next prime is 20356372327. The reversal of 20356372322 is 22327365302.

It can be written as a sum of positive squares in 4 ways, for example, as 10400124361 + 9956247961 = 101981^2 + 99781^2 .

It is a super-2 number, since 2×20356372322² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20356372327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136829 + ... + 243792.

Almost surely, 2^20356372322 is an apocalyptic number.

20356372322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20356372322 is a deficient number, since it is larger than the sum of its proper divisors (17914408534).

20356372322 is a wasteful number, since it uses less digits than its factorization.

20356372322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380675 (or 380664 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 20356372322 in words is "twenty billion, three hundred fifty-six million, three hundred seventy-two thousand, three hundred twenty-two".