1155051561150 has 48 divisors (see below), whose sum is σ = 3182808750000. Its totient is φ = 308013749280.

The previous prime is 1155051561119. The next prime is 1155051561173. The reversal of 1155051561150 is 511651505511.

1155051561150 is a `hidden beast` number, since 1 + 1 + 550 + 5 + 1 + 56 + 1 + 1 + 50 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427795525 + ... + 427798224.

It is an arithmetic number, because the mean of its divisors is an integer number (66308515625).

Almost surely, 2^{1155051561150} is an apocalyptic number.

1155051561150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155051561150 is an abundant number, since it is smaller than the sum of its proper divisors (2027757188850).

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

1155051561150 is a wasteful number, since it uses less digits than its factorization.

1155051561150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855593770 (or 855593759 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

The spelling of 1155051561150 in words is "one trillion, one hundred fifty-five billion, fifty-one million, five hundred sixty-one thousand, one hundred fifty".