13056621435 has 144 divisors (see below), whose sum is σ = 28309795488. Its totient is φ = 5499187200.

The previous prime is 13056621407. The next prime is 13056621443. The reversal of 13056621435 is 53412665031.

13056621435 is a `hidden beast` number, since 1 + 30 + 566 + 21 + 43 + 5 = 666.

It is not a de Polignac number, because 13056621435 - 2⁷ = 13056621307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13056621435.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 1417545 + ... + 1426725.

It is an arithmetic number, because the mean of its divisors is an integer number (196595802).

Almost surely, 2^13056621435 is an apocalyptic number.

13056621435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13056621435 is an abundant number, since it is smaller than the sum of its proper divisors (15253174053).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13056621435 is a wasteful number, since it uses less digits than its factorization.

13056621435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9246 (or 9230 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 13056621435 in words is "thirteen billion, fifty-six million, six hundred twenty-one thousand, four hundred thirty-five".