65641254485 has 8 divisors (see below), whose sum is σ = 78813595296. Its totient is φ = 52483610320.

The previous prime is 65641254467. The next prime is 65641254533. The reversal of 65641254485 is 58445214656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65641254485 - 2¹⁸ = 65640992341 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3664331 + ... + 3682200.

It is an arithmetic number, because the mean of its divisors is an integer number (9851699412).

Almost surely, 2^65641254485 is an apocalyptic number.

It is an amenable number.

65641254485 is a deficient number, since it is larger than the sum of its proper divisors (13172340811).

65641254485 is a wasteful number, since it uses less digits than its factorization.

65641254485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7348323.

The product of its digits is 4608000, while the sum is 50.

The spelling of 65641254485 in words is "sixty-five billion, six hundred forty-one million, two hundred fifty-four thousand, four hundred eighty-five".