256164095 has 16 divisors (see below), whose sum is σ = 340070400. Its totient is φ = 183674400.

The previous prime is 256164089. The next prime is 256164113. The reversal of 256164095 is 590461652.

It is not a de Polignac number, because 256164095 - 2¹² = 256159999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28895 + ... + 36704.

It is an arithmetic number, because the mean of its divisors is an integer number (21254400).

Almost surely, 2^256164095 is an apocalyptic number.

256164095 is a deficient number, since it is larger than the sum of its proper divisors (83906305).

256164095 is a wasteful number, since it uses less digits than its factorization.

256164095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65686.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 256164095 is about 16005.1271472613. The cubic root of 256164095 is about 635.0960608596.

The spelling of 256164095 in words is "two hundred fifty-six million, one hundred sixty-four thousand, ninety-five".