1151155255005 has 64 divisors (see below), whose sum is σ = 2339998302720. Its totient is φ = 525985187328.

The previous prime is 1151155255001. The next prime is 1151155255009. The reversal of 1151155255005 is 5005525511511.

1151155255005 is a `hidden beast` number, since 1 + 1 + 51 + 1 + 5 + 52 + 550 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1151155255001) and next prime (1151155255009).

It is not a de Polignac number, because 1151155255005 - 2² = 1151155255001 is a prime.

It is a super-2 number, since 2×1151155255005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151155255001) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1643409 + ... + 2236761.

It is an arithmetic number, because the mean of its divisors is an integer number (36562473480).

Almost surely, 2^{1151155255005} is an apocalyptic number.

1151155255005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151155255005 is an abundant number, since it is smaller than the sum of its proper divisors (1188843047715).

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

1151155255005 is a wasteful number, since it uses less digits than its factorization.

1151155255005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595427 (or 595421 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 36.

The spelling of 1151155255005 in words is "one trillion, one hundred fifty-one billion, one hundred fifty-five million, two hundred fifty-five thousand, five".