201680495 has 4 divisors (see below), whose sum is σ = 242016600. Its totient is φ = 161344392.

The previous prime is 201680483. The next prime is 201680509. The reversal of 201680495 is 594086102.

201680495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 201680495 - 2¹⁸ = 201418351 is a prime.

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, 20168045 + ... + 20168054.

It is an arithmetic number, because the mean of its divisors is an integer number (60504150).

Almost surely, 2^201680495 is an apocalyptic number.

201680495 is a deficient number, since it is larger than the sum of its proper divisors (40336105).

201680495 is an equidigital number, since it uses as much as digits as its factorization.

201680495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40336104.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 201680495 is about 14201.4258086996. The cubic root of 201680495 is about 586.4369137726.

The spelling of 201680495 in words is "two hundred one million, six hundred eighty thousand, four hundred ninety-five".