1155170047090 has 16 divisors (see below), whose sum is σ = 2084651351640. Its totient is φ = 460880181760.

The previous prime is 1155170047039. The next prime is 1155170047093. The reversal of 1155170047090 is 907400715511.

It can be written as a sum of positive squares in 4 ways, for example, as 852281622481 + 302888424609 = 923191^2 + 550353^2 .

It is not an unprimeable number, because it can be changed into a prime (1155170047093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148475551 + ... + 148483330.

Almost surely, 2^{1155170047090} is an apocalyptic number.

1155170047090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155170047090 is a deficient number, since it is larger than the sum of its proper divisors (929481304550).

1155170047090 is a wasteful number, since it uses less digits than its factorization.

1155170047090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296959277.

The product of its (nonzero) digits is 44100, while the sum is 40.

The spelling of 1155170047090 in words is "one trillion, one hundred fifty-five billion, one hundred seventy million, forty-seven thousand, ninety".