66452354 has 16 divisors (see below), whose sum is σ = 107536248. Its totient is φ = 30680832.

The previous prime is 66452341. The next prime is 66452377. The reversal of 66452354 is 45325466.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65983129 + 469225 = 8123^2 + 685^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16637 + ... + 20240.

Almost surely, 2^66452354 is an apocalyptic number.

66452354 is a deficient number, since it is larger than the sum of its proper divisors (41083894).

66452354 is a wasteful number, since it uses less digits than its factorization.

66452354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36949.

The product of its digits is 86400, while the sum is 35.

The square root of 66452354 is about 8151.8313279900. The cubic root of 66452354 is about 405.0451689702.

The spelling of 66452354 in words is "sixty-six million, four hundred fifty-two thousand, three hundred fifty-four".