66126330506 has 8 divisors (see below), whose sum is σ = 99190949760. Its totient is φ = 33062680588.

The previous prime is 66126330503. The next prime is 66126330509. The reversal of 66126330506 is 60503362166.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66126330503) and next prime (66126330509).

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

It is a self number, because there is not a number n which added to its sum of digits gives 66126330506.

It is not an unprimeable number, because it can be changed into a prime (66126330503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36986 + ... + 365541.

It is an arithmetic number, because the mean of its divisors is an integer number (12398868720).

Almost surely, 2^66126330506 is an apocalyptic number.

66126330506 is a deficient number, since it is larger than the sum of its proper divisors (33064619254).

66126330506 is a wasteful number, since it uses less digits than its factorization.

66126330506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484668.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 66126330506 in words is "sixty-six billion, one hundred twenty-six million, three hundred thirty thousand, five hundred six".