66635100234 has 12 divisors (see below), whose sum is σ = 144376050546. Its totient is φ = 22211700072.

The previous prime is 66635100229. The next prime is 66635100247. The reversal of 66635100234 is 43200153666.

It can be written as a sum of positive squares in only one way, i.e., 65078561025 + 1556539209 = 255105^2 + 39453^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1850974989 + ... + 1850975024.

Almost surely, 2^66635100234 is an apocalyptic number.

66635100234 is an abundant number, since it is smaller than the sum of its proper divisors (77740950312).

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

66635100234 is a wasteful number, since it uses less digits than its factorization.

66635100234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701950021 (or 3701950018 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 66635100234 in words is "sixty-six billion, six hundred thirty-five million, one hundred thousand, two hundred thirty-four".