66550414 has 8 divisors (see below), whose sum is σ = 114086448. Its totient is φ = 28521600.

The previous prime is 66550409. The next prime is 66550441. The reversal of 66550414 is 41405566.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2376787 + ... + 2376814.

It is an arithmetic number, because the mean of its divisors is an integer number (14260806).

Almost surely, 2^66550414 is an apocalyptic number.

66550414 is a deficient number, since it is larger than the sum of its proper divisors (47536034).

66550414 is a wasteful number, since it uses less digits than its factorization.

66550414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753610.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 66550414 is about 8157.8437101970. The cubic root of 66550414 is about 405.2443051732.

The spelling of 66550414 in words is "sixty-six million, five hundred fifty thousand, four hundred fourteen".