6620312535 has 16 divisors (see below), whose sum is σ = 10595760000. Its totient is φ = 3529746720.

The previous prime is 6620312527. The next prime is 6620312591. The reversal of 6620312535 is 5352130266.

It is not a de Polignac number, because 6620312535 - 2³ = 6620312527 is a prime.

It is a super-2 number, since 2×6620312535² = 87657076122156252450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6620312496 and 6620312505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16285 + ... + 116214.

It is an arithmetic number, because the mean of its divisors is an integer number (662235000).

Almost surely, 2^6620312535 is an apocalyptic number.

6620312535 is a deficient number, since it is larger than the sum of its proper divisors (3975447465).

6620312535 is a wasteful number, since it uses less digits than its factorization.

6620312535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135838.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 6620312535 is about 81365.3030167036. The cubic root of 6620312535 is about 1877.6998176814.

The spelling of 6620312535 in words is "six billion, six hundred twenty million, three hundred twelve thousand, five hundred thirty-five".