1161505402643 has 8 divisors (see below), whose sum is σ = 1222649291520. Its totient is φ = 1100362716360.

The previous prime is 1161505402639. The next prime is 1161505402661. The reversal of 1161505402643 is 3462045051611.

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 1161505402643 - 2² = 1161505402639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161505402597 and 1161505402606.

It is not an unprimeable number, because it can be changed into a prime (1161505402243) 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, 2226698 + ... + 2698368.

It is an arithmetic number, because the mean of its divisors is an integer number (152831161440).

Almost surely, 2^{1161505402643} is an apocalyptic number.

1161505402643 is a deficient number, since it is larger than the sum of its proper divisors (61143888877).

1161505402643 is a wasteful number, since it uses less digits than its factorization.

1161505402643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601297.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1161505402643 in words is "one trillion, one hundred sixty-one billion, five hundred five million, four hundred two thousand, six hundred forty-three".