66231010418 has 16 divisors (see below), whose sum is σ = 103689789336. Its totient is φ = 31698226560.

The previous prime is 66231010393. The next prime is 66231010429. The reversal of 66231010418 is 81401013266.

It can be written as a sum of positive squares in 4 ways, for example, as 54860413729 + 11370596689 = 234223^2 + 106633^2 .

It is a super-3 number, since 3×66231010418³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7615421 + ... + 7624112.

Almost surely, 2^66231010418 is an apocalyptic number.

66231010418 is a deficient number, since it is larger than the sum of its proper divisors (37458778918).

66231010418 is a wasteful number, since it uses less digits than its factorization.

66231010418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15239629.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 66231010418 in words is "sixty-six billion, two hundred thirty-one million, ten thousand, four hundred eighteen".