1161155265054 has 128 divisors (see below), whose sum is σ = 2458319086080. Its totient is φ = 365098406400.

The previous prime is 1161155265007. The next prime is 1161155265077. The reversal of 1161155265054 is 4505625511611.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1161155264997 and 1161155265015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1715147764 + ... + 1715148440.

It is an arithmetic number, because the mean of its divisors is an integer number (19205617860).

Almost surely, 2^{1161155265054} is an apocalyptic number.

1161155265054 is an abundant number, since it is smaller than the sum of its proper divisors (1297163821026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161155265054 is a wasteful number, since it uses less digits than its factorization.

1161155265054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 1161155265054 in words is "one trillion, one hundred sixty-one billion, one hundred fifty-five million, two hundred sixty-five thousand, fifty-four".