123730636066 has 8 divisors (see below), whose sum is σ = 185631736860. Its totient is φ = 61853390448.

The previous prime is 123730636049. The next prime is 123730636067. The reversal of 123730636066 is 660636037321.

It can be written as a sum of positive squares in 2 ways, for example, as 93806825841 + 29923810225 = 306279^2 + 172985^2 .

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

It is not an unprimeable number, because it can be changed into a prime (123730636067) 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, 5950821 + ... + 5971576.

Almost surely, 2^123730636066 is an apocalyptic number.

123730636066 is a deficient number, since it is larger than the sum of its proper divisors (61901100794).

123730636066 is a wasteful number, since it uses less digits than its factorization.

123730636066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11927588.

The product of its (nonzero) digits is 489888, while the sum is 43.

The spelling of 123730636066 in words is "one hundred twenty-three billion, seven hundred thirty million, six hundred thirty-six thousand, sixty-six".