1084556165979 has 24 divisors (see below), whose sum is σ = 1711755532816. Its totient is φ = 606744705600.

The previous prime is 1084556165971. The next prime is 1084556165989. The reversal of 1084556165979 is 9795616554801.

It is a happy number.

It is not a de Polignac number, because 1084556165979 - 2³ = 1084556165971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1084556165971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114909052 + ... + 114918489.

Almost surely, 2^{1084556165979} is an apocalyptic number.

1084556165979 is a deficient number, since it is larger than the sum of its proper divisors (627199366837).

1084556165979 is a wasteful number, since it uses less digits than its factorization.

1084556165979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229827579 (or 229827568 counting only the distinct ones).

The product of its (nonzero) digits is 81648000, while the sum is 66.

The spelling of 1084556165979 in words is "one trillion, eighty-four billion, five hundred fifty-six million, one hundred sixty-five thousand, nine hundred seventy-nine".