65491695 has 24 divisors (see below), whose sum is σ = 118456416. Its totient is φ = 33409728.

The previous prime is 65491693. The next prime is 65491697. The reversal of 65491695 is 59619456.

It is a happy number.

65491695 is a `hidden beast` number, since 6 + 549 + 16 + 95 = 666.

It is an interprime number because it is at equal distance from previous prime (65491693) and next prime (65491697).

It is not a de Polignac number, because 65491695 - 2¹ = 65491693 is a prime.

It is a super-2 number, since 2×65491695² = 8578324227946050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65491695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65491691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30604 + ... + 32673.

It is an arithmetic number, because the mean of its divisors is an integer number (4935684).

Almost surely, 2^65491695 is an apocalyptic number.

65491695 is a deficient number, since it is larger than the sum of its proper divisors (52964721).

65491695 is a wasteful number, since it uses less digits than its factorization.

65491695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63311 (or 63308 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 65491695 is about 8092.6939272408. The cubic root of 65491695 is about 403.0838613149.

The spelling of 65491695 in words is "sixty-five million, four hundred ninety-one thousand, six hundred ninety-five".