65190992 has 10 divisors (see below), whose sum is σ = 126307578. Its totient is φ = 32595488.

The previous prime is 65190991. The next prime is 65190997. The reversal of 65190992 is 29909156.

65190992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 58920976 + 6270016 = 7676^2 + 2504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65190991) 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 as a sum of consecutive naturals, namely, 2037203 + ... + 2037234.

Almost surely, 2^65190992 is an apocalyptic number.

It is an amenable number.

65190992 is a deficient number, since it is larger than the sum of its proper divisors (61116586).

65190992 is a wasteful number, since it uses less digits than its factorization.

65190992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074445 (or 4074439 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 65190992 is about 8074.0938810494. The cubic root of 65190992 is about 402.4659992112.

The spelling of 65190992 in words is "sixty-five million, one hundred ninety thousand, nine hundred ninety-two".