66253546 has 8 divisors (see below), whose sum is σ = 99450144. Its totient is φ = 33103500.

The previous prime is 66253543. The next prime is 66253549. The reversal of 66253546 is 64535266.

It is an interprime number because it is at equal distance from previous prime (66253543) and next prime (66253549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66253543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7830 + ... + 13921.

It is an arithmetic number, because the mean of its divisors is an integer number (12431268).

Almost surely, 2^66253546 is an apocalyptic number.

66253546 is a deficient number, since it is larger than the sum of its proper divisors (33196598).

66253546 is a wasteful number, since it uses less digits than its factorization.

66253546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23276.

The product of its digits is 129600, while the sum is 37.

The square root of 66253546 is about 8139.6281241836. The cubic root of 66253546 is about 404.6408358740.

The spelling of 66253546 in words is "sixty-six million, two hundred fifty-three thousand, five hundred forty-six".