1155156154026 has 16 divisors (see below), whose sum is σ = 2640356923584. Its totient is φ = 330044615424.

The previous prime is 1155156154021. The next prime is 1155156154039. The reversal of 1155156154026 is 6204516515511.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 27503717953 = 1155156154026 / (1 + 1 + 5 + 5 + 1 + 5 + 6 + 1 + 5 + 4 + 0 + 2 + 6).

It is not an unprimeable number, because it can be changed into a prime (1155156154021) 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 7 ways as a sum of consecutive naturals, for example, 13751858935 + ... + 13751859018.

It is an arithmetic number, because the mean of its divisors is an integer number (165022307724).

Almost surely, 2^{1155156154026} is an apocalyptic number.

1155156154026 is an abundant number, since it is smaller than the sum of its proper divisors (1485200769558).

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

1155156154026 is a wasteful number, since it uses less digits than its factorization.

1155156154026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27503717965.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 1155156154026 in words is "one trillion, one hundred fifty-five billion, one hundred fifty-six million, one hundred fifty-four thousand, twenty-six".