13021605355 has 8 divisors (see below), whose sum is σ = 17046465264. Its totient is φ = 9470258400.

The previous prime is 13021605353. The next prime is 13021605367. The reversal of 13021605355 is 55350612031.

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

It is not a de Polignac number, because 13021605355 - 2¹ = 13021605353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021605353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118378176 + ... + 118378285.

It is an arithmetic number, because the mean of its divisors is an integer number (2130808158).

Almost surely, 2^13021605355 is an apocalyptic number.

13021605355 is a deficient number, since it is larger than the sum of its proper divisors (4024859909).

13021605355 is a wasteful number, since it uses less digits than its factorization.

13021605355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236756477.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13021605355 in words is "thirteen billion, twenty-one million, six hundred five thousand, three hundred fifty-five".