65921514 has 16 divisors (see below), whose sum is σ = 132064128. Its totient is φ = 21936992.

The previous prime is 65921497. The next prime is 65921539. The reversal of 65921514 is 41512956.

It is an unprimeable number.

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, 5202 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (8254008).

Almost surely, 2^65921514 is an apocalyptic number.

65921514 is an abundant number, since it is smaller than the sum of its proper divisors (66142614).

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

65921514 is a wasteful number, since it uses less digits than its factorization.

65921514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18429.

The product of its digits is 10800, while the sum is 33.

The square root of 65921514 is about 8119.2064883214. The cubic root of 65921514 is about 403.9637462158.

The spelling of 65921514 in words is "sixty-five million, nine hundred twenty-one thousand, five hundred fourteen".