1174320173561 has 2 divisors, whose sum is σ = 1174320173562. Its totient is φ = 1174320173560.

The previous prime is 1174320173519. The next prime is 1174320173567. The reversal of 1174320173561 is 1653710234711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616430687161 + 557889486400 = 785131^2 + 746920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1174320173561 - 2⁶ = 1174320173497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1174320173567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587160086780 + 587160086781.

It is an arithmetic number, because the mean of its divisors is an integer number (587160086781).

Almost surely, 2^{1174320173561} is an apocalyptic number.

It is an amenable number.

1174320173561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1174320173561 is an equidigital number, since it uses as much as digits as its factorization.

1174320173561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 1174320173561 in words is "one trillion, one hundred seventy-four billion, three hundred twenty million, one hundred seventy-three thousand, five hundred sixty-one".