1115151556005 has 12 divisors (see below), whose sum is σ = 1932929363820. Its totient is φ = 594747496512.

The previous prime is 1115151555979. The next prime is 1115151556039. The reversal of 1115151556005 is 5006551515111.

1115151556005 is a `hidden beast` number, since 1 + 1 + 1 + 51 + 51 + 556 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 396076387716 + 719075168289 = 629346^2 + 847983^2 .

It is not a de Polignac number, because 1115151556005 - 2²¹ = 1115149458853 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 12390572800 + ... + 12390572889.

It is an arithmetic number, because the mean of its divisors is an integer number (161077446985).

Almost surely, 2^{1115151556005} is an apocalyptic number.

1115151556005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115151556005 is a deficient number, since it is larger than the sum of its proper divisors (817777807815).

1115151556005 is a wasteful number, since it uses less digits than its factorization.

1115151556005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24781145700 (or 24781145697 counting only the distinct ones).

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

The spelling of 1115151556005 in words is "one trillion, one hundred fifteen billion, one hundred fifty-one million, five hundred fifty-six thousand, five".