190546135668 has 144 divisors (see below), whose sum is σ = 571608535680. Its totient is φ = 54369823104.

The previous prime is 190546135651. The next prime is 190546135669. The reversal of 190546135668 is 866531645091.

190546135668 is a `hidden beast` number, since 1 + 9 + 0 + 546 + 1 + 35 + 6 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190546135669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5241378 + ... + 5277606.

It is an arithmetic number, because the mean of its divisors is an integer number (3969503720).

Almost surely, 2^190546135668 is an apocalyptic number.

190546135668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190546135668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285804267840).

190546135668 is an abundant number, since it is smaller than the sum of its proper divisors (381062400012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190546135668 is a wasteful number, since it uses less digits than its factorization.

190546135668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37028 (or 37014 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 190546135668 in words is "one hundred ninety billion, five hundred forty-six million, one hundred thirty-five thousand, six hundred sixty-eight".