66488058 has 48 divisors (see below), whose sum is σ = 177305856. Its totient is φ = 17534880.

The previous prime is 66488057. The next prime is 66488069. The reversal of 66488058 is 85088466.

It is a super-3 number, since 3×66488058³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66488057) by changing a digit.

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, 18658 + ... + 21933.

It is an arithmetic number, because the mean of its divisors is an integer number (3693872).

Almost surely, 2^66488058 is an apocalyptic number.

66488058 is an abundant number, since it is smaller than the sum of its proper divisors (110817798).

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

66488058 is a wasteful number, since it uses less digits than its factorization.

66488058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40619 (or 40616 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 66488058 is about 8154.0209712755. The cubic root of 66488058 is about 405.1176978453.

It can be divided in two parts, 6648 and 8058, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 66488058 in words is "sixty-six million, four hundred eighty-eight thousand, fifty-eight".