66187103236 has 18 divisors (see below), whose sum is σ = 119042518938. Its totient is φ = 32199128640.

The previous prime is 66187103173. The next prime is 66187103239. The reversal of 66187103236 is 63230178166.

It can be written as a sum of positive squares in 3 ways, for example, as 52752902400 + 13434200836 = 229680^2 + 115906^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66187103192 and 66187103201.

It is not an unprimeable number, because it can be changed into a prime (66187103239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6037905 + ... + 6048856.

Almost surely, 2^66187103236 is an apocalyptic number.

It is an amenable number.

66187103236 is a deficient number, since it is larger than the sum of its proper divisors (52855415702).

66187103236 is a wasteful number, since it uses less digits than its factorization.

66187103236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12086839 (or 12086800 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 66187103236 in words is "sixty-six billion, one hundred eighty-seven million, one hundred three thousand, two hundred thirty-six".