65419641 has 96 divisors (see below), whose sum is σ = 123002880. Its totient is φ = 32659200.

The previous prime is 65419639. The next prime is 65419661. The reversal of 65419641 is 14691456.

65419641 is a `hidden beast` number, since 6 + 5 + 4 + 1 + 9 + 641 = 666.

65419641 is a nontrivial binomial coefficient, being equal to C(11439, 2).

It is not a de Polignac number, because 65419641 - 2¹ = 65419639 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (25920) is a multiple of the sum of its prime divisors (144).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65419596 and 65419605.

It is not an unprimeable number, because it can be changed into a prime (65419661) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1521366 + ... + 1521408.

It is an arithmetic number, because the mean of its divisors is an integer number (1281280).

Almost surely, 2^65419641 is an apocalyptic number.

65419641 is the 11438-th triangular number.

It is an amenable number.

65419641 is a deficient number, since it is larger than the sum of its proper divisors (57583239).

65419641 is a wasteful number, since it uses less digits than its factorization.

65419641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 144 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 65419641 is about 8088.2409088751. The cubic root of 65419641 is about 402.9359827052.

The spelling of 65419641 in words is "sixty-five million, four hundred nineteen thousand, six hundred forty-one".