65446645 has 16 divisors (see below), whose sum is σ = 87671232. Its totient is φ = 46488960.

The previous prime is 65446637. The next prime is 65446669. The reversal of 65446645 is 54664456.

It is not a de Polignac number, because 65446645 - 2³ = 65446637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65446598 and 65446607.

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, 11472 + ... + 16201.

It is an arithmetic number, because the mean of its divisors is an integer number (5479452).

Almost surely, 2^65446645 is an apocalyptic number.

It is an amenable number.

65446645 is a deficient number, since it is larger than the sum of its proper divisors (22224587).

65446645 is a wasteful number, since it uses less digits than its factorization.

65446645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27732.

The product of its digits is 345600, while the sum is 40.

The square root of 65446645 is about 8089.9100736658. The cubic root of 65446645 is about 402.9914165490.

The spelling of 65446645 in words is "sixty-five million, four hundred forty-six thousand, six hundred forty-five".