216294757905 has 64 divisors (see below), whose sum is σ = 363525120000. Its totient is φ = 109687080960.

The previous prime is 216294757849. The next prime is 216294757961. The reversal of 216294757905 is 509757492612.

It is an interprime number because it is at equal distance from previous prime (216294757849) and next prime (216294757961).

It is not a de Polignac number, because 216294757905 - 2¹⁴ = 216294741521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6252346 + ... + 6286844.

It is an arithmetic number, because the mean of its divisors is an integer number (5680080000).

Almost surely, 2^216294757905 is an apocalyptic number.

It is an amenable number.

216294757905 is a deficient number, since it is larger than the sum of its proper divisors (147230362095).

216294757905 is a wasteful number, since it uses less digits than its factorization.

216294757905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34774.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 216294757905 in words is "two hundred sixteen billion, two hundred ninety-four million, seven hundred fifty-seven thousand, nine hundred five".