126665110 has 64 divisors (see below), whose sum is σ = 270817344. Its totient is φ = 42048000.

The previous prime is 126665107. The next prime is 126665173. The reversal of 126665110 is 11566621.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143992 + ... + 144868.

It is an arithmetic number, because the mean of its divisors is an integer number (4231521).

Almost surely, 2^126665110 is an apocalyptic number.

126665110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126665110 is an abundant number, since it is smaller than the sum of its proper divisors (144152234).

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

126665110 is a wasteful number, since it uses less digits than its factorization.

126665110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 126665110 is about 11254.5595204788. The cubic root of 126665110 is about 502.2103608774.

The spelling of 126665110 in words is "one hundred twenty-six million, six hundred sixty-five thousand, one hundred ten".