65994042 has 16 divisors (see below), whose sum is σ = 132168960. Its totient is φ = 21967872.

The previous prime is 65994041. The next prime is 65994077. The reversal of 65994042 is 24049956.

It is not an unprimeable number, because it can be changed into a prime (65994041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2538 + ... + 11765.

It is an arithmetic number, because the mean of its divisors is an integer number (8260560).

Almost surely, 2^65994042 is an apocalyptic number.

65994042 is an abundant number, since it is smaller than the sum of its proper divisors (66174918).

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

65994042 is a wasteful number, since it uses less digits than its factorization.

65994042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 65994042 is about 8123.6717068084. The cubic root of 65994042 is about 404.1118412377. Note that the first 3 decimals are identical.

The spelling of 65994042 in words is "sixty-five million, nine hundred ninety-four thousand, forty-two".