66253614 has 32 divisors (see below), whose sum is σ = 152641536. Its totient is φ = 18779040.

The previous prime is 66253609. The next prime is 66253633. The reversal of 66253614 is 41635266.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 877 + ... + 11544.

It is an arithmetic number, because the mean of its divisors is an integer number (4770048).

Almost surely, 2^66253614 is an apocalyptic number.

66253614 is an abundant number, since it is smaller than the sum of its proper divisors (86387922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66253614 is a wasteful number, since it uses less digits than its factorization.

66253614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560.

The product of its digits is 25920, while the sum is 33.

The square root of 66253614 is about 8139.6323012775. The cubic root of 66253614 is about 404.6409743097.

The spelling of 66253614 in words is "sixty-six million, two hundred fifty-three thousand, six hundred fourteen".