66054371 has 2 divisors, whose sum is σ = 66054372. Its totient is φ = 66054370.

The previous prime is 66054343. The next prime is 66054379. The reversal of 66054371 is 17345066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66054371 - 2¹⁴ = 66037987 is a prime.

It is not a weakly prime, because it can be changed into another prime (66054379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33027185 + 33027186.

It is an arithmetic number, because the mean of its divisors is an integer number (33027186).

Almost surely, 2^66054371 is an apocalyptic number.

66054371 is a deficient number, since it is larger than the sum of its proper divisors (1).

66054371 is an equidigital number, since it uses as much as digits as its factorization.

66054371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 66054371 is about 8127.3840194739. The cubic root of 66054371 is about 404.2349444621.

The spelling of 66054371 in words is "sixty-six million, fifty-four thousand, three hundred seventy-one".