126681966880 has 48 divisors (see below), whose sum is σ = 342041313600. Its totient is φ = 43433816832.

The previous prime is 126681966877. The next prime is 126681966881. The reversal of 126681966880 is 88669186621.

It is not an unprimeable number, because it can be changed into a prime (126681966881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56553330 + ... + 56555569.

It is an arithmetic number, because the mean of its divisors is an integer number (7125860700).

Almost surely, 2^126681966880 is an apocalyptic number.

126681966880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126681966880 is an abundant number, since it is smaller than the sum of its proper divisors (215359346720).

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

126681966880 is a wasteful number, since it uses less digits than its factorization.

126681966880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113108921 (or 113108913 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 61.

The spelling of 126681966880 in words is "one hundred twenty-six billion, six hundred eighty-one million, nine hundred sixty-six thousand, eight hundred eighty".