66162953 has 2 divisors, whose sum is σ = 66162954. Its totient is φ = 66162952.

The previous prime is 66162947. The next prime is 66162961. The reversal of 66162953 is 35926166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 11580409 = 7388^2 + 3403^2 .

It is a cyclic number.

It is not a de Polignac number, because 66162953 - 2⁴ = 66162937 is a prime.

It is not a weakly prime, because it can be changed into another prime (66162553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33081476 + 33081477.

It is an arithmetic number, because the mean of its divisors is an integer number (33081477).

Almost surely, 2^66162953 is an apocalyptic number.

It is an amenable number.

66162953 is a deficient number, since it is larger than the sum of its proper divisors (1).

66162953 is an equidigital number, since it uses as much as digits as its factorization.

66162953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 66162953 is about 8134.0612857293. The cubic root of 66162953 is about 404.4563207282.

The spelling of 66162953 in words is "sixty-six million, one hundred sixty-two thousand, nine hundred fifty-three".