126450633566 has 16 divisors (see below), whose sum is σ = 192827725200. Its totient is φ = 62175180480.

The previous prime is 126450633553. The next prime is 126450633599. The reversal of 126450633566 is 665336054621.

It is a self number, because there is not a number n which added to its sum of digits gives 126450633566.

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, 455705 + ... + 678651.

It is an arithmetic number, because the mean of its divisors is an integer number (12051732825).

Almost surely, 2^126450633566 is an apocalyptic number.

126450633566 is a deficient number, since it is larger than the sum of its proper divisors (66377091634).

126450633566 is a wasteful number, since it uses less digits than its factorization.

126450633566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227659.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 126450633566 in words is "one hundred twenty-six billion, four hundred fifty million, six hundred thirty-three thousand, five hundred sixty-six".