61666483 has 2 divisors, whose sum is σ = 61666484. Its totient is φ = 61666482.

The previous prime is 61666453. The next prime is 61666487. The reversal of 61666483 is 38466616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61666483 - 2⁹ = 61665971 is a prime.

It is not a weakly prime, because it can be changed into another prime (61666487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30833241 + 30833242.

It is an arithmetic number, because the mean of its divisors is an integer number (30833242).

Almost surely, 2^61666483 is an apocalyptic number.

61666483 is a deficient number, since it is larger than the sum of its proper divisors (1).

61666483 is an equidigital number, since it uses as much as digits as its factorization.

61666483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 61666483 is about 7852.8009652607. The cubic root of 61666483 is about 395.0781942083.

The spelling of 61666483 in words is "sixty-one million, six hundred sixty-six thousand, four hundred eighty-three".