66554046 has 48 divisors (see below), whose sum is σ = 159510624. Its totient is φ = 19922112.

The previous prime is 66554039. The next prime is 66554053. The reversal of 66554046 is 64045566.

It is a happy number.

66554046 is a `hidden beast` number, since 66 + 554 + 0 + 46 = 666.

It is an interprime number because it is at equal distance from previous prime (66554039) and next prime (66554053).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66554046.

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 23 ways as a sum of consecutive naturals, for example, 4815 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (3323138).

Almost surely, 2^66554046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66554046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79755312).

66554046 is an abundant number, since it is smaller than the sum of its proper divisors (92956578).

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

66554046 is a wasteful number, since it uses less digits than its factorization.

66554046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745 (or 7742 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 66554046 is about 8158.0663150038. The cubic root of 66554046 is about 405.2516771311.

It can be divided in two parts, 6655 and 4046, that added together give a palindrome (10701).

The spelling of 66554046 in words is "sixty-six million, five hundred fifty-four thousand, forty-six".