126780199560 has 192 divisors, whose sum is σ = 483625209600. Its totient is φ = 28195112448.

The previous prime is 126780199537. The next prime is 126780199589. The reversal of 126780199560 is 65991087621.

126780199560 is a `hidden beast` number, since 1 + 2 + 6 + 78 + 0 + 1 + 9 + 9 + 560 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 126780199497 and 126780199506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 586620 + ... + 773099.

It is an arithmetic number, because the mean of its divisors is an integer number (2518881300).

Almost surely, 2^126780199560 is an apocalyptic number.

126780199560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126780199560 is an abundant number, since it is smaller than the sum of its proper divisors (356845010040).

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

126780199560 is a wasteful number, since it uses less digits than its factorization.

126780199560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359780 (or 1359773 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 126780199560 in words is "one hundred twenty-six billion, seven hundred eighty million, one hundred ninety-nine thousand, five hundred sixty".