126465566 has 32 divisors (see below), whose sum is σ = 200049696. Its totient is φ = 59904000.

The previous prime is 126465551. The next prime is 126465571. The reversal of 126465566 is 665564621.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655166 + ... + 655358.

It is an arithmetic number, because the mean of its divisors is an integer number (6251553).

Almost surely, 2^126465566 is an apocalyptic number.

126465566 is a deficient number, since it is larger than the sum of its proper divisors (73584130).

126465566 is a wasteful number, since it uses less digits than its factorization.

126465566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 259200, while the sum is 41.

The square root of 126465566 is about 11245.6909969997. The cubic root of 126465566 is about 501.9465004387.

The spelling of 126465566 in words is "one hundred twenty-six million, four hundred sixty-five thousand, five hundred sixty-six".