126726715660 has 24 divisors (see below), whose sum is σ = 280132740720. Its totient is φ = 48022755264.

The previous prime is 126726715637. The next prime is 126726715667. The reversal of 126726715660 is 66517627621.

It is not an unprimeable number, because it can be changed into a prime (126726715667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166745299 + ... + 166746058.

It is an arithmetic number, because the mean of its divisors is an integer number (11672197530).

Almost surely, 2^126726715660 is an apocalyptic number.

126726715660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126726715660 is an abundant number, since it is smaller than the sum of its proper divisors (153406025060).

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

126726715660 is a wasteful number, since it uses less digits than its factorization.

126726715660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333491385 (or 333491383 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 126726715660 in words is "one hundred twenty-six billion, seven hundred twenty-six million, seven hundred fifteen thousand, six hundred sixty".