66461214 has 32 divisors (see below), whose sum is σ = 143493120. Its totient is φ = 20458592.

The previous prime is 66461201. The next prime is 66461233. The reversal of 66461214 is 41216466.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4302 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (4484160).

Almost surely, 2^66461214 is an apocalyptic number.

66461214 is an abundant number, since it is smaller than the sum of its proper divisors (77031906).

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

66461214 is a wasteful number, since it uses less digits than its factorization.

66461214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16664.

The product of its digits is 6912, while the sum is 30.

The square root of 66461214 is about 8152.3747460479. The cubic root of 66461214 is about 405.0631695401.

It can be divided in two parts, 66 and 461214, that added together give a triangular number (461280 = T₉₆₀).

The spelling of 66461214 in words is "sixty-six million, four hundred sixty-one thousand, two hundred fourteen".