65445636 has 12 divisors (see below), whose sum is σ = 152706512. Its totient is φ = 21815208.

The previous prime is 65445629. The next prime is 65445647. The reversal of 65445636 is 63654456.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-6 number, since 6×65445636⁶ (a number of 48 digits) contains 666666 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65445594 and 65445603.

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, 2726890 + ... + 2726913.

Almost surely, 2^65445636 is an apocalyptic number.

It is an amenable number.

65445636 is an abundant number, since it is smaller than the sum of its proper divisors (87260876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65445636 is a wasteful number, since it uses less digits than its factorization.

65445636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453810 (or 5453808 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The square root of 65445636 is about 8089.8477117928. The cubic root of 65445636 is about 402.9893455469.

The spelling of 65445636 in words is "sixty-five million, four hundred forty-five thousand, six hundred thirty-six".