191600142885 has 96 divisors (see below), whose sum is σ = 350760533760. Its totient is φ = 96559017984.

The previous prime is 191600142883. The next prime is 191600142919. The reversal of 191600142885 is 588241006191.

It is a happy number.

191600142885 is a `hidden beast` number, since 1 + 9 + 1 + 600 + 14 + 28 + 8 + 5 = 666.

It is not a de Polignac number, because 191600142885 - 2¹ = 191600142883 is a prime.

It is a super-2 number, since 2×191600142885² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 191600142885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191600142883) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 67966006 + ... + 67968824.

It is an arithmetic number, because the mean of its divisors is an integer number (3653755560).

Almost surely, 2^191600142885 is an apocalyptic number.

191600142885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191600142885 is a deficient number, since it is larger than the sum of its proper divisors (159160390875).

191600142885 is a wasteful number, since it uses less digits than its factorization.

191600142885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 191600142885 in words is "one hundred ninety-one billion, six hundred million, one hundred forty-two thousand, eight hundred eighty-five".