1151511181560 has 64 divisors (see below), whose sum is σ = 3838370608800. Its totient is φ = 307069648128.

The previous prime is 1151511181523. The next prime is 1151511181571. The reversal of 1151511181560 is 651811151511.

1151511181560 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 5 + 1 + 11 + 81 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 533105949 + ... + 533108108.

Almost surely, 2^{1151511181560} is an apocalyptic number.

1151511181560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151511181560 is an abundant number, since it is smaller than the sum of its proper divisors (2686859427240).

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

1151511181560 is a wasteful number, since it uses less digits than its factorization.

1151511181560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066214077 (or 1066214067 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 36.

The spelling of 1151511181560 in words is "one trillion, one hundred fifty-one billion, five hundred eleven million, one hundred eighty-one thousand, five hundred sixty".