1055981635199 has 16 divisors (see below), whose sum is σ = 1093669444224. Its totient is φ = 1018901452800.

The previous prime is 1055981635187. The next prime is 1055981635201. The reversal of 1055981635199 is 9915361895501.

It is a cyclic number.

It is not a de Polignac number, because 1055981635199 - 2³² = 1051686667903 is a prime.

It is a super-2 number, since 2×1055981635199² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055981635129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898939 + ... + 2391219.

It is an arithmetic number, because the mean of its divisors is an integer number (68354340264).

Almost surely, 2^{1055981635199} is an apocalyptic number.

1055981635199 is a deficient number, since it is larger than the sum of its proper divisors (37687809025).

1055981635199 is a wasteful number, since it uses less digits than its factorization.

1055981635199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492898.

The product of its (nonzero) digits is 13122000, while the sum is 62.

The spelling of 1055981635199 in words is "one trillion, fifty-five billion, nine hundred eighty-one million, six hundred thirty-five thousand, one hundred ninety-nine".