16905825607 has 16 divisors (see below), whose sum is σ = 18618092064. Its totient is φ = 15349963200.

The previous prime is 16905825583. The next prime is 16905825613. The reversal of 16905825607 is 70652850961.

It is a de Polignac number, because none of the positive numbers 2^k-16905825607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16905829607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1133257 + ... + 1148077.

It is an arithmetic number, because the mean of its divisors is an integer number (1163630754).

Almost surely, 2^16905825607 is an apocalyptic number.

16905825607 is a deficient number, since it is larger than the sum of its proper divisors (1712266457).

16905825607 is an equidigital number, since it uses as much as digits as its factorization.

16905825607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15711 (or 15689 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 16905825607 in words is "sixteen billion, nine hundred five million, eight hundred twenty-five thousand, six hundred seven".