1133555556890 has 16 divisors (see below), whose sum is σ = 2040451436232. Its totient is φ = 453410793024.

The previous prime is 1133555556871. The next prime is 1133555556967. The reversal of 1133555556890 is 986555553311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 744649910761 + 388905646129 = 862931^2 + 623623^2 .

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 7 ways as a sum of consecutive naturals, for example, 1006229 + ... + 1810968.

Almost surely, 2^{1133555556890} is an apocalyptic number.

1133555556890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1133555556890 is a deficient number, since it is larger than the sum of its proper divisors (906895879342).

1133555556890 is a wasteful number, since it uses less digits than its factorization.

1133555556890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857441.

The product of its (nonzero) digits is 12150000, while the sum is 56.

The spelling of 1133555556890 in words is "one trillion, one hundred thirty-three billion, five hundred fifty-five million, five hundred fifty-six thousand, eight hundred ninety".