1161006161533 has 2 divisors, whose sum is σ = 1161006161534. Its totient is φ = 1161006161532.

The previous prime is 1161006161509. The next prime is 1161006161561. The reversal of 1161006161533 is 3351616001611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155287474649 + 5718686884 = 1074843^2 + 75622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161006161533 - 2²⁹ = 1160469290621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161006161333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580503080766 + 580503080767.

It is an arithmetic number, because the mean of its divisors is an integer number (580503080767).

Almost surely, 2^{1161006161533} is an apocalyptic number.

It is an amenable number.

1161006161533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161006161533 is an equidigital number, since it uses as much as digits as its factorization.

1161006161533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 1161006161533 in words is "one trillion, one hundred sixty-one billion, six million, one hundred sixty-one thousand, five hundred thirty-three".