1161454550311 has 16 divisors (see below), whose sum is σ = 1284301791360. Its totient is φ = 1041523636320.

The previous prime is 1161454550309. The next prime is 1161454550363. The reversal of 1161454550311 is 1130554541611.

It is a cyclic number.

It is not a de Polignac number, because 1161454550311 - 2¹ = 1161454550309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161454550371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402156 + ... + 1576273.

It is an arithmetic number, because the mean of its divisors is an integer number (80268861960).

Almost surely, 2^{1161454550311} is an apocalyptic number.

1161454550311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1161454550311 is a deficient number, since it is larger than the sum of its proper divisors (122847241049).

1161454550311 is a wasteful number, since it uses less digits than its factorization.

1161454550311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979166.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 1161454550311 in words is "one trillion, one hundred sixty-one billion, four hundred fifty-four million, five hundred fifty thousand, three hundred eleven".