16355263321 has 8 divisors (see below), whose sum is σ = 17407068264. Its totient is φ = 15313428480.

The previous prime is 16355263273. The next prime is 16355263333. The reversal of 16355263321 is 12336255361.

It can be written as a sum of positive squares in 4 ways, for example, as 2304480025 + 14050783296 = 48005^2 + 118536^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16355263321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16355263381) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2489140 + ... + 2495701.

It is an arithmetic number, because the mean of its divisors is an integer number (2175883533).

Almost surely, 2^16355263321 is an apocalyptic number.

It is an amenable number.

16355263321 is a deficient number, since it is larger than the sum of its proper divisors (1051804943).

16355263321 is a wasteful number, since it uses less digits than its factorization.

16355263321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985051.

The product of its digits is 97200, while the sum is 37.

The spelling of 16355263321 in words is "sixteen billion, three hundred fifty-five million, two hundred sixty-three thousand, three hundred twenty-one".