126680027580 has 72 divisors (see below), whose sum is σ = 386807619744. Its totient is φ = 33557616000.

The previous prime is 126680027563. The next prime is 126680027623. The reversal of 126680027580 is 85720086621.

126680027580 is a `hidden beast` number, since 1 + 2 + 6 + 68 + 0 + 0 + 2 + 7 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2303211 + ... + 2357570.

It is an arithmetic number, because the mean of its divisors is an integer number (5372328052).

Almost surely, 2^126680027580 is an apocalyptic number.

126680027580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126680027580 is an abundant number, since it is smaller than the sum of its proper divisors (260127592164).

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

126680027580 is a wasteful number, since it uses less digits than its factorization.

126680027580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660947 (or 4660942 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 126680027580 in words is "one hundred twenty-six billion, six hundred eighty million, twenty-seven thousand, five hundred eighty".