66455214 has 16 divisors (see below), whose sum is σ = 151897728. Its totient is φ = 18987192.

The previous prime is 66455197. The next prime is 66455231. The reversal of 66455214 is 41255466.

It is an interprime number because it is at equal distance from previous prime (66455197) and next prime (66455231).

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 7 ways as a sum of consecutive naturals, for example, 791092 + ... + 791175.

It is an arithmetic number, because the mean of its divisors is an integer number (9493608).

Almost surely, 2^66455214 is an apocalyptic number.

66455214 is an abundant number, since it is smaller than the sum of its proper divisors (85442514).

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

66455214 is a wasteful number, since it uses less digits than its factorization.

66455214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582279.

The product of its digits is 28800, while the sum is 33.

The square root of 66455214 is about 8152.0067468078. The cubic root of 66455214 is about 405.0509797128.

The spelling of 66455214 in words is "sixty-six million, four hundred fifty-five thousand, two hundred fourteen".