65961694 has 4 divisors (see below), whose sum is σ = 98942544. Its totient is φ = 32980846.

The previous prime is 65961667. The next prime is 65961697. The reversal of 65961694 is 49616956.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65961697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16490422 + ... + 16490425.

It is an arithmetic number, because the mean of its divisors is an integer number (24735636).

Almost surely, 2^65961694 is an apocalyptic number.

65961694 is a deficient number, since it is larger than the sum of its proper divisors (32980850).

65961694 is a wasteful number, since it uses less digits than its factorization.

65961694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32980849.

The product of its digits is 349920, while the sum is 46.

The square root of 65961694 is about 8121.6804911299. The cubic root of 65961694 is about 404.0458032244.

The spelling of 65961694 in words is "sixty-five million, nine hundred sixty-one thousand, six hundred ninety-four".