1218033260990 has 64 divisors (see below), whose sum is σ = 2730923306496. Its totient is φ = 380842998912.

The previous prime is 1218033260981. The next prime is 1218033261013. The reversal of 1218033260990 is 990623308121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7987712 + ... + 8138771.

It is an arithmetic number, because the mean of its divisors is an integer number (42670676664).

Almost surely, 2^{1218033260990} is an apocalyptic number.

1218033260990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1218033260990 is an abundant number, since it is smaller than the sum of its proper divisors (1512890045506).

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

1218033260990 is a wasteful number, since it uses less digits than its factorization.

1218033260990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16126593.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 1218033260990 in words is "one trillion, two hundred eighteen billion, thirty-three million, two hundred sixty thousand, nine hundred ninety".