1170221261457 has 16 divisors (see below), whose sum is σ = 1602942727680. Its totient is φ = 758836219392.

The previous prime is 1170221261449. The next prime is 1170221261491. The reversal of 1170221261457 is 7541621220711.

It is not a de Polignac number, because 1170221261457 - 2³ = 1170221261449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1170221261857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196448 + ... + 1942145.

It is an arithmetic number, because the mean of its divisors is an integer number (100183920480).

Almost surely, 2^{1170221261457} is an apocalyptic number.

It is an amenable number.

1170221261457 is a deficient number, since it is larger than the sum of its proper divisors (432721466223).

1170221261457 is a wasteful number, since it uses less digits than its factorization.

1170221261457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141992.

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 1170221261457 in words is "one trillion, one hundred seventy billion, two hundred twenty-one million, two hundred sixty-one thousand, four hundred fifty-seven".