65164785 has 32 divisors (see below), whose sum is σ = 122072832. Its totient is φ = 29061120.

The previous prime is 65164783. The next prime is 65164787. The reversal of 65164785 is 58746156.

It is an interprime number because it is at equal distance from previous prime (65164783) and next prime (65164787).

It is not a de Polignac number, because 65164785 - 2¹ = 65164783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65164783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3264 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (3814776).

Almost surely, 2^65164785 is an apocalyptic number.

It is an amenable number.

65164785 is a deficient number, since it is larger than the sum of its proper divisors (56908047).

65164785 is a wasteful number, since it uses less digits than its factorization.

65164785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15193.

The product of its digits is 201600, while the sum is 42.

The square root of 65164785 is about 8072.4708113439. The cubic root of 65164785 is about 402.4120610836.

The spelling of 65164785 in words is "sixty-five million, one hundred sixty-four thousand, seven hundred eighty-five".