65691042 has 16 divisors (see below), whose sum is σ = 131563872. Its totient is φ = 21866720.

The previous prime is 65690981. The next prime is 65691047. The reversal of 65691042 is 24019656.

It is a junction number, because it is equal to n+sod(n) for n = 65690994 and 65691012.

It is not an unprimeable number, because it can be changed into a prime (65691047) 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, 2628 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (8222742).

Almost surely, 2^65691042 is an apocalyptic number.

65691042 is an abundant number, since it is smaller than the sum of its proper divisors (65872830).

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

65691042 is a wasteful number, since it uses less digits than its factorization.

65691042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15153.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 65691042 is about 8105.0010487353. The cubic root of 65691042 is about 403.4924228787.

The spelling of 65691042 in words is "sixty-five million, six hundred ninety-one thousand, forty-two".