126640514002864 has 40 divisors (see below), whose sum is σ = 251998641992160. Its totient is φ = 61608621777408.

The previous prime is 126640514002799. The next prime is 126640514002889. The reversal of 126640514002864 is 468200415046621.

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, 206615157 + ... + 207227179.

It is an arithmetic number, because the mean of its divisors is an integer number (6299966049804).

Almost surely, 2^{126640514002864} is an apocalyptic number.

It is an amenable number.

126640514002864 is a deficient number, since it is larger than the sum of its proper divisors (125358127989296).

126640514002864 is a wasteful number, since it uses less digits than its factorization.

126640514002864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961597 (or 961591 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 126640514002864 in words is "one hundred twenty-six trillion, six hundred forty billion, five hundred fourteen million, two thousand, eight hundred sixty-four".