65954642 has 16 divisors (see below), whose sum is σ = 110217240. Its totient is φ = 29390592.

The previous prime is 65954641. The next prime is 65954657. The reversal of 65954642 is 24645956.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58507201 + 7447441 = 7649^2 + 2729^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65954642.

It is not an unprimeable number, because it can be changed into a prime (65954641) 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, 42983 + ... + 44490.

Almost surely, 2^65954642 is an apocalyptic number.

65954642 is a deficient number, since it is larger than the sum of its proper divisors (44262598).

65954642 is a wasteful number, since it uses less digits than its factorization.

65954642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87517.

The product of its digits is 259200, while the sum is 41.

The square root of 65954642 is about 8121.2463329221. The cubic root of 65954642 is about 404.0314037935.

The spelling of 65954642 in words is "sixty-five million, nine hundred fifty-four thousand, six hundred forty-two".