126690194068 has 24 divisors (see below), whose sum is σ = 227598279552. Its totient is φ = 61676081664.

The previous prime is 126690194009. The next prime is 126690194087. The reversal of 126690194068 is 860491096621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709530 + ... + 1782097.

It is an arithmetic number, because the mean of its divisors is an integer number (9483261648).

Almost surely, 2^126690194068 is an apocalyptic number.

It is an amenable number.

126690194068 is a deficient number, since it is larger than the sum of its proper divisors (100908085484).

126690194068 is a wasteful number, since it uses less digits than its factorization.

126690194068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491871 (or 3491869 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 126690194068 in words is "one hundred twenty-six billion, six hundred ninety million, one hundred ninety-four thousand, sixty-eight".