66126055 has 8 divisors (see below), whose sum is σ = 79582032. Its totient is φ = 52747008.

The previous prime is 66126043. The next prime is 66126059. The reversal of 66126055 is 55062166.

66126055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 66126055 - 2¹¹ = 66124007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66126059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17322 + ... + 20791.

It is an arithmetic number, because the mean of its divisors is an integer number (9947754).

Almost surely, 2^66126055 is an apocalyptic number.

66126055 is a deficient number, since it is larger than the sum of its proper divisors (13455977).

66126055 is a wasteful number, since it uses less digits than its factorization.

66126055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38465.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 66126055 is about 8131.7928527478. The cubic root of 66126055 is about 404.3811205155.

The spelling of 66126055 in words is "sixty-six million, one hundred twenty-six thousand, fifty-five".