65374661 has 4 divisors (see below), whose sum is σ = 71317824. Its totient is φ = 59431500.

The previous prime is 65374657. The next prime is 65374667. The reversal of 65374661 is 16647356.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65374661 - 2² = 65374657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65374667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2971565 + ... + 2971586.

It is an arithmetic number, because the mean of its divisors is an integer number (17829456).

Almost surely, 2^65374661 is an apocalyptic number.

It is an amenable number.

65374661 is a deficient number, since it is larger than the sum of its proper divisors (5943163).

65374661 is a wasteful number, since it uses less digits than its factorization.

65374661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943162.

The product of its digits is 90720, while the sum is 38.

The square root of 65374661 is about 8085.4598508681. The cubic root of 65374661 is about 402.8436138304.

The spelling of 65374661 in words is "sixty-five million, three hundred seventy-four thousand, six hundred sixty-one".