1161155265030 has 48 divisors (see below), whose sum is σ = 3045720562560. Its totient is φ = 306901211904.

The previous prime is 1161155265007. The next prime is 1161155265077. The reversal of 1161155265030 is 305625511611.

1161155265030 is a `hidden beast` number, since 1 + 1 + 6 + 11 + 552 + 65 + 0 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57077110 + ... + 57097449.

It is an arithmetic number, because the mean of its divisors is an integer number (63452511720).

Almost surely, 2^{1161155265030} is an apocalyptic number.

1161155265030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161155265030 is an abundant number, since it is smaller than the sum of its proper divisors (1884565297530).

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

1161155265030 is a wasteful number, since it uses less digits than its factorization.

1161155265030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114174685 (or 114174682 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 1161155265030 in words is "one trillion, one hundred sixty-one billion, one hundred fifty-five million, two hundred sixty-five thousand, thirty".