126661641266 has 8 divisors (see below), whose sum is σ = 191488465920. Its totient is φ = 62832152628.

The previous prime is 126661641259. The next prime is 126661641313. The reversal of 126661641266 is 662146166621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 126661641266.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249333686 + ... + 249334193.

It is an arithmetic number, because the mean of its divisors is an integer number (23936058240).

Almost surely, 2^126661641266 is an apocalyptic number.

126661641266 is a deficient number, since it is larger than the sum of its proper divisors (64826824654).

126661641266 is a wasteful number, since it uses less digits than its factorization.

126661641266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498668008.

The product of its digits is 746496, while the sum is 47.

The spelling of 126661641266 in words is "one hundred twenty-six billion, six hundred sixty-one million, six hundred forty-one thousand, two hundred sixty-six".