66455038 has 16 divisors (see below), whose sum is σ = 109848816. Its totient is φ = 29957760.

The previous prime is 66455033. The next prime is 66455069. The reversal of 66455038 is 83055466.

It is a junction number, because it is equal to n+sod(n) for n = 66454988 and 66455006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66455033) 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 7 ways as a sum of consecutive naturals, for example, 28603 + ... + 30838.

It is an arithmetic number, because the mean of its divisors is an integer number (6865551).

Almost surely, 2^66455038 is an apocalyptic number.

66455038 is a deficient number, since it is larger than the sum of its proper divisors (43393778).

66455038 is a wasteful number, since it uses less digits than its factorization.

66455038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59499.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 66455038 is about 8151.9959519126. The cubic root of 66455038 is about 405.0506221334.

The spelling of 66455038 in words is "sixty-six million, four hundred fifty-five thousand, thirty-eight".