65199970 has 16 divisors (see below), whose sum is σ = 128029248. Its totient is φ = 23709040.

The previous prime is 65199961. The next prime is 65199989. The reversal of 65199970 is 7999156.

It is a self number, because there is not a number n which added to its sum of digits gives 65199970.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296254 + ... + 296473.

It is an arithmetic number, because the mean of its divisors is an integer number (8001828).

Almost surely, 2^65199970 is an apocalyptic number.

65199970 is a deficient number, since it is larger than the sum of its proper divisors (62829278).

65199970 is a wasteful number, since it uses less digits than its factorization.

65199970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592745.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 65199970 is about 8074.6498376091. The cubic root of 65199970 is about 402.4844740227.

The spelling of 65199970 in words is "sixty-five million, one hundred ninety-nine thousand, nine hundred seventy".