65465644 has 12 divisors (see below), whose sum is σ = 118515600. Its totient is φ = 31604048.

The previous prime is 65465639. The next prime is 65465663. The reversal of 65465644 is 44656456.

It is a junction number, because it is equal to n+sod(n) for n = 65465597 and 65465606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282064 + ... + 282295.

It is an arithmetic number, because the mean of its divisors is an integer number (9876300).

Almost surely, 2^65465644 is an apocalyptic number.

It is an amenable number.

65465644 is a deficient number, since it is larger than the sum of its proper divisors (53049956).

65465644 is a wasteful number, since it uses less digits than its factorization.

65465644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564392 (or 564390 counting only the distinct ones).

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

The square root of 65465644 is about 8091.0842289523. The cubic root of 65465644 is about 403.0304085817.

The spelling of 65465644 in words is "sixty-five million, four hundred sixty-five thousand, six hundred forty-four".