65006646 has 32 divisors (see below), whose sum is σ = 132649440. Its totient is φ = 21233664.

The previous prime is 65006621. The next prime is 65006647. The reversal of 65006646 is 64660056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65006647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84150 + ... + 84918.

It is an arithmetic number, because the mean of its divisors is an integer number (4145295).

Almost surely, 2^65006646 is an apocalyptic number.

65006646 is an abundant number, since it is smaller than the sum of its proper divisors (67642794).

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

65006646 is a wasteful number, since it uses less digits than its factorization.

65006646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 65006646 is about 8062.6699051865. The cubic root of 65006646 is about 402.0862788500.

The spelling of 65006646 in words is "sixty-five million, six thousand, six hundred forty-six".