1266078495090 has 16 divisors (see below), whose sum is σ = 3038588388288. Its totient is φ = 337620932016.

The previous prime is 1266078495067. The next prime is 1266078495103. The reversal of 1266078495090 is 905948706621.

It is a self number, because there is not a number n which added to its sum of digits gives 1266078495090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21101308222 + ... + 21101308281.

It is an arithmetic number, because the mean of its divisors is an integer number (189911774268).

Almost surely, 2^{1266078495090} is an apocalyptic number.

1266078495090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266078495090 is an abundant number, since it is smaller than the sum of its proper divisors (1772509893198).

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

1266078495090 is a wasteful number, since it uses less digits than its factorization.

1266078495090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42202616513.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 1266078495090 in words is "one trillion, two hundred sixty-six billion, seventy-eight million, four hundred ninety-five thousand, ninety".