16003157285 has 4 divisors (see below), whose sum is σ = 19203788748. Its totient is φ = 12802525824.

The previous prime is 16003157273. The next prime is 16003157299. The reversal of 16003157285 is 58275130061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3804175684 + 12198981601 = 61678^2 + 110449^2 .

It is a cyclic number.

It is not a de Polignac number, because 16003157285 - 2¹² = 16003153189 is a prime.

It is a super-2 number, since 2×16003157285² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600315724 + ... + 1600315733.

It is an arithmetic number, because the mean of its divisors is an integer number (4800947187).

Almost surely, 2^16003157285 is an apocalyptic number.

It is an amenable number.

16003157285 is a deficient number, since it is larger than the sum of its proper divisors (3200631463).

16003157285 is an equidigital number, since it uses as much as digits as its factorization.

16003157285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200631462.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 16003157285 in words is "sixteen billion, three million, one hundred fifty-seven thousand, two hundred eighty-five".