1606091186954 has 8 divisors (see below), whose sum is σ = 2413461982788. Its totient is φ = 801603859360.

The previous prime is 1606091186899. The next prime is 1606091186971. The reversal of 1606091186954 is 4596811906061.

It can be written as a sum of positive squares in 2 ways, for example, as 1329443590225 + 276647596729 = 1153015^2 + 525973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1606091186954² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1606091186954.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720865667 + ... + 720867894.

Almost surely, 2^{1606091186954} is an apocalyptic number.

1606091186954 is a deficient number, since it is larger than the sum of its proper divisors (807370795834).

1606091186954 is a wasteful number, since it uses less digits than its factorization.

1606091186954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441734120.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 1606091186954 in words is "one trillion, six hundred six billion, ninety-one million, one hundred eighty-six thousand, nine hundred fifty-four".