66975411 has 16 divisors (see below), whose sum is σ = 92358144. Its totient is φ = 43147104.

The previous prime is 66975397. The next prime is 66975449. The reversal of 66975411 is 11457966.

It is not a de Polignac number, because 66975411 - 2⁶ = 66975347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66975411.

It is not an unprimeable number, because it can be changed into a prime (66975451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7510 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (5772384).

Almost surely, 2^66975411 is an apocalyptic number.

66975411 is a deficient number, since it is larger than the sum of its proper divisors (25382733).

66975411 is a wasteful number, since it uses less digits than its factorization.

66975411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410.

The product of its digits is 45360, while the sum is 39.

The square root of 66975411 is about 8183.8506218039. The cubic root of 66975411 is about 406.1051176933.

The spelling of 66975411 in words is "sixty-six million, nine hundred seventy-five thousand, four hundred eleven".