20536358345 has 8 divisors (see below), whose sum is σ = 24645821064. Its totient is φ = 16427625984.

The previous prime is 20536358303. The next prime is 20536358351. The reversal of 20536358345 is 54385363502.

It can be written as a sum of positive squares in 4 ways, for example, as 3474496 + 20532883849 = 1864^2 + 143293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20536358345 - 2⁶ = 20536358281 is a prime.

It is a super-2 number, since 2×20536358345² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20536358296 and 20536358305.

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, 118694 + ... + 234863.

It is an arithmetic number, because the mean of its divisors is an integer number (3080727633).

Almost surely, 2^20536358345 is an apocalyptic number.

It is an amenable number.

20536358345 is a deficient number, since it is larger than the sum of its proper divisors (4109462719).

20536358345 is a wasteful number, since it uses less digits than its factorization.

20536358345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365179.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 20536358345 in words is "twenty billion, five hundred thirty-six million, three hundred fifty-eight thousand, three hundred forty-five".