65045665 has 8 divisors (see below), whose sum is σ = 78523200. Its totient is φ = 51724272.

The previous prime is 65045663. The next prime is 65045699. The reversal of 65045665 is 56654056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65045665 - 2¹ = 65045663 is a prime.

It is a super-3 number, since 3×65045665³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (65045663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38115 + ... + 39784.

It is an arithmetic number, because the mean of its divisors is an integer number (9815400).

Almost surely, 2^65045665 is an apocalyptic number.

It is an amenable number.

65045665 is a deficient number, since it is larger than the sum of its proper divisors (13477535).

65045665 is a wasteful number, since it uses less digits than its factorization.

65045665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78071.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 65045665 is about 8065.0892741494. The cubic root of 65045665 is about 402.1667109675.

The spelling of 65045665 in words is "sixty-five million, forty-five thousand, six hundred sixty-five".