66011451 has 16 divisors (see below), whose sum is σ = 96163200. Its totient is φ = 39945920.

The previous prime is 66011443. The next prime is 66011467. The reversal of 66011451 is 15411066.

It is a cyclic number.

It is not a de Polignac number, because 66011451 - 2³ = 66011443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66011411) 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, 30400 + ... + 32498.

It is an arithmetic number, because the mean of its divisors is an integer number (6010200).

Almost surely, 2^66011451 is an apocalyptic number.

66011451 is a deficient number, since it is larger than the sum of its proper divisors (30151749).

66011451 is a wasteful number, since it uses less digits than its factorization.

66011451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 66011451 is about 8124.7431344012. The cubic root of 66011451 is about 404.1473725488.

The spelling of 66011451 in words is "sixty-six million, eleven thousand, four hundred fifty-one".