16885507357 has 4 divisors (see below), whose sum is σ = 16913053660. Its totient is φ = 16857961056.

The previous prime is 16885507333. The next prime is 16885507381. The reversal of 16885507357 is 75370558861.

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

It is an interprime number because it is at equal distance from previous prime (16885507333) and next prime (16885507381).

It can be written as a sum of positive squares in 2 ways, for example, as 208109476 + 16677397881 = 14426^2 + 129141^2 .

It is a cyclic number.

It is not a de Polignac number, because 16885507357 - 2⁷ = 16885507229 is a prime.

It is a super-2 number, since 2×16885507357² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16885507298 and 16885507307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16885507307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13772232 + ... + 13773457.

It is an arithmetic number, because the mean of its divisors is an integer number (4228263415).

Almost surely, 2^16885507357 is an apocalyptic number.

It is an amenable number.

16885507357 is a deficient number, since it is larger than the sum of its proper divisors (27546303).

16885507357 is an equidigital number, since it uses as much as digits as its factorization.

16885507357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27546302.

The product of its (nonzero) digits is 7056000, while the sum is 55.

The spelling of 16885507357 in words is "sixteen billion, eight hundred eighty-five million, five hundred seven thousand, three hundred fifty-seven".