126660320323616 has 24 divisors (see below), whose sum is σ = 249363064444284. Its totient is φ = 63330018242560.

The previous prime is 126660320323613. The next prime is 126660320323639. The reversal of 126660320323616 is 616323023066621.

It can be written as a sum of positive squares in 2 ways, for example, as 123756636163216 + 2903684160400 = 11124596^2 + 1704020^2 .

It is not an unprimeable number, because it can be changed into a prime (126660320323613) 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, 10881656 + ... + 19280328.

Almost surely, 2^{126660320323616} is an apocalyptic number.

126660320323616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126660320323616 is a deficient number, since it is larger than the sum of its proper divisors (122702744120668).

126660320323616 is an equidigital number, since it uses as much as digits as its factorization.

126660320323616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869964 (or 8869956 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 126660320323616 in words is "one hundred twenty-six trillion, six hundred sixty billion, three hundred twenty million, three hundred twenty-three thousand, six hundred sixteen".