1161044452571 has 8 divisors (see below), whose sum is σ = 1163083420464. Its totient is φ = 1159006284000.

The previous prime is 1161044452541. The next prime is 1161044452577. The reversal of 1161044452571 is 1752544401611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161044452571 - 2⁶ = 1161044452507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161044452577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745821 + ... + 3140321.

It is an arithmetic number, because the mean of its divisors is an integer number (145385427558).

Almost surely, 2^{1161044452571} is an apocalyptic number.

1161044452571 is a deficient number, since it is larger than the sum of its proper divisors (2038967893).

1161044452571 is an equidigital number, since it uses as much as digits as its factorization.

1161044452571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399661.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 1161044452571 in words is "one trillion, one hundred sixty-one billion, forty-four million, four hundred fifty-two thousand, five hundred seventy-one".