65642802 has 8 divisors (see below), whose sum is σ = 131285616. Its totient is φ = 21880932.

The previous prime is 65642789. The next prime is 65642803. The reversal of 65642802 is 20824656.

65642802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

65642802 is an admirable number.

It is a super-2 number, since 2×65642802² = 8617954908822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65642803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5470228 + ... + 5470239.

It is an arithmetic number, because the mean of its divisors is an integer number (16410702).

Almost surely, 2^65642802 is an apocalyptic number.

65642802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65642802 is a wasteful number, since it uses less digits than its factorization.

65642802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940472.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 65642802 is about 8102.0245617994. The cubic root of 65642802 is about 403.3936309157.

The spelling of 65642802 in words is "sixty-five million, six hundred forty-two thousand, eight hundred two".