66325964461 has 8 divisors (see below), whose sum is σ = 66397915584. Its totient is φ = 66254052960.

The previous prime is 66325964447. The next prime is 66325964479. The reversal of 66325964461 is 16446952366.

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

It is a cyclic number.

It is not a de Polignac number, because 66325964461 - 2¹⁹ = 66325440173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66325964399 and 66325964408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66325964431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4291630 + ... + 4307056.

It is an arithmetic number, because the mean of its divisors is an integer number (8299739448).

Almost surely, 2^66325964461 is an apocalyptic number.

It is an amenable number.

66325964461 is a deficient number, since it is larger than the sum of its proper divisors (71951123).

66325964461 is a wasteful number, since it uses less digits than its factorization.

66325964461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19811.

The product of its digits is 5598720, while the sum is 52.

The spelling of 66325964461 in words is "sixty-six billion, three hundred twenty-five million, nine hundred sixty-four thousand, four hundred sixty-one".