65981083 has 8 divisors (see below), whose sum is σ = 75738080. Its totient is φ = 56306880.

The previous prime is 65981059. The next prime is 65981087. The reversal of 65981083 is 38018956.

It is a happy number.

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

It is not a de Polignac number, because 65981083 - 2¹³ = 65972891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65981087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18978 + ... + 22183.

It is an arithmetic number, because the mean of its divisors is an integer number (9467260).

Almost surely, 2^65981083 is an apocalyptic number.

65981083 is a deficient number, since it is larger than the sum of its proper divisors (9756997).

65981083 is a wasteful number, since it uses less digits than its factorization.

65981083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41397.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 65981083 is about 8122.8740603311. The cubic root of 65981083 is about 404.0853882024.

The spelling of 65981083 in words is "sixty-five million, nine hundred eighty-one thousand, eighty-three".