20620265530 has 8 divisors (see below), whose sum is σ = 37116477972. Its totient is φ = 8248106208.

The previous prime is 20620265461. The next prime is 20620265563. The reversal of 20620265530 is 3556202602.

It can be written as a sum of positive squares in 2 ways, for example, as 20593111009 + 27154521 = 143503^2 + 5211^2 .

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

It is a super-4 number, since 4×20620265530⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20620265492 and 20620265501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031013267 + ... + 1031013286.

Almost surely, 2^20620265530 is an apocalyptic number.

20620265530 is a deficient number, since it is larger than the sum of its proper divisors (16496212442).

20620265530 is a wasteful number, since it uses less digits than its factorization.

20620265530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062026560.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 20620265530 in words is "twenty billion, six hundred twenty million, two hundred sixty-five thousand, five hundred thirty".