66790001229 has 16 divisors (see below), whose sum is σ = 101782369920. Its totient is φ = 38163041280.

The previous prime is 66790001219. The next prime is 66790001303. The reversal of 66790001229 is 92210009766.

It is not a de Polignac number, because 66790001229 - 2⁷ = 66790001101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66790001219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218169 + ... + 425649.

It is an arithmetic number, because the mean of its divisors is an integer number (6361398120).

Almost surely, 2^66790001229 is an apocalyptic number.

It is an amenable number.

66790001229 is a deficient number, since it is larger than the sum of its proper divisors (34992368691).

66790001229 is a wasteful number, since it uses less digits than its factorization.

66790001229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222820.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 66790001229 in words is "sixty-six billion, seven hundred ninety million, one thousand, two hundred twenty-nine".