66312411 has 8 divisors (see below), whose sum is σ = 96454464. Its totient is φ = 40189320.

The previous prime is 66312409. The next prime is 66312419. The reversal of 66312411 is 11421366.

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

It is not a de Polignac number, because 66312411 - 2¹ = 66312409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66312419) 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, 1004701 + ... + 1004766.

It is an arithmetic number, because the mean of its divisors is an integer number (12056808).

Almost surely, 2^66312411 is an apocalyptic number.

66312411 is a deficient number, since it is larger than the sum of its proper divisors (30142053).

66312411 is a wasteful number, since it uses less digits than its factorization.

66312411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009481.

The product of its digits is 864, while the sum is 24.

The square root of 66312411 is about 8143.2432727998. The cubic root of 66312411 is about 404.7606389307.

Adding to 66312411 its reverse (11421366), we get a palindrome (77733777).

The spelling of 66312411 in words is "sixty-six million, three hundred twelve thousand, four hundred eleven".