65349966 has 16 divisors (see below), whose sum is σ = 142581888. Its totient is φ = 19803000.

The previous prime is 65349961. The next prime is 65350003. The reversal of 65349966 is 66994356.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65349961) 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, 495010 + ... + 495141.

It is an arithmetic number, because the mean of its divisors is an integer number (8911368).

Almost surely, 2^65349966 is an apocalyptic number.

65349966 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

65349966 is an abundant number, since it is smaller than the sum of its proper divisors (77231922).

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

65349966 is a wasteful number, since it uses less digits than its factorization.

65349966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990167.

The product of its digits is 1049760, while the sum is 48.

The square root of 65349966 is about 8083.9325825986. The cubic root of 65349966 is about 402.7928832885.

The spelling of 65349966 in words is "sixty-five million, three hundred forty-nine thousand, nine hundred sixty-six".