66315054 has 64 divisors (see below), whose sum is σ = 155635200. Its totient is φ = 18652032.

The previous prime is 66315047. The next prime is 66315061. The reversal of 66315054 is 45051366.

It is an interprime number because it is at equal distance from previous prime (66315047) and next prime (66315061).

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 42207 + ... + 43749.

It is an arithmetic number, because the mean of its divisors is an integer number (2431800).

Almost surely, 2^66315054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66315054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77817600).

66315054 is an abundant number, since it is smaller than the sum of its proper divisors (89320146).

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

66315054 is a wasteful number, since it uses less digits than its factorization.

66315054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 66315054 is about 8143.4055529612. The cubic root of 66315054 is about 404.7660163462.

The spelling of 66315054 in words is "sixty-six million, three hundred fifteen thousand, fifty-four".