1164787617601 has 4 divisors (see below), whose sum is σ = 1165729241812. Its totient is φ = 1163845993392.

The previous prime is 1164787617583. The next prime is 1164787617647. The reversal of 1164787617601 is 1067167874611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1074075213376 + 90712404225 = 1036376^2 + 301185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164787617601 - 2⁷ = 1164787617473 is a prime.

It is a super-2 number, since 2×1164787617601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164787617701) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 470810250 + ... + 470812723.

It is an arithmetic number, because the mean of its divisors is an integer number (291432310453).

Almost surely, 2^{1164787617601} is an apocalyptic number.

It is an amenable number.

1164787617601 is a deficient number, since it is larger than the sum of its proper divisors (941624211).

1164787617601 is an equidigital number, since it uses as much as digits as its factorization.

1164787617601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941624210.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 1164787617601 in words is "one trillion, one hundred sixty-four billion, seven hundred eighty-seven million, six hundred seventeen thousand, six hundred one".