1018139580105 has 16 divisors (see below), whose sum is σ = 1638439652160. Its totient is φ = 539869001408.

The previous prime is 1018139580071. The next prime is 1018139580149. The reversal of 1018139580105 is 5010859318101.

It is a cyclic number.

It is not a de Polignac number, because 1018139580105 - 2¹² = 1018139576009 is a prime.

It is a super-2 number, since 2×1018139580105² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196170735 + ... + 196175924.

It is an arithmetic number, because the mean of its divisors is an integer number (102402478260).

Almost surely, 2^{1018139580105} is an apocalyptic number.

1018139580105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1018139580105 is a deficient number, since it is larger than the sum of its proper divisors (620300072055).

1018139580105 is a wasteful number, since it uses less digits than its factorization.

1018139580105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392346840.

The product of its (nonzero) digits is 43200, while the sum is 42.

The spelling of 1018139580105 in words is "one trillion, eighteen billion, one hundred thirty-nine million, five hundred eighty thousand, one hundred five".