1248661266 has 16 divisors (see below), whose sum is σ = 2628760800. Its totient is φ = 394314048.

The previous prime is 1248661259. The next prime is 1248661279. The reversal of 1248661266 is 6621668421.

It is a Curzon 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, 5476471 + ... + 5476698.

It is an arithmetic number, because the mean of its divisors is an integer number (164297550).

Almost surely, 2^1248661266 is an apocalyptic number.

1248661266 is an abundant number, since it is smaller than the sum of its proper divisors (1380099534).

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

1248661266 is a wasteful number, since it uses less digits than its factorization.

1248661266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10953193.

The product of its digits is 165888, while the sum is 42.

The square root of 1248661266 is about 35336.4014296872. The cubic root of 1248661266 is about 1076.8326456512.

The spelling of 1248661266 in words is "one billion, two hundred forty-eight million, six hundred sixty-one thousand, two hundred sixty-six".