2157746203368 has 96 divisors (see below), whose sum is σ = 6704725959360. Its totient is φ = 614100049920.

The previous prime is 2157746203367. The next prime is 2157746203397. The reversal of 2157746203368 is 8633026477512.

It is a happy number.

2157746203368 is a `hidden beast` number, since 2 + 1 + 5 + 7 + 7 + 4 + 620 + 3 + 3 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2157746203367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8199738 + ... + 8458793.

It is an arithmetic number, because the mean of its divisors is an integer number (69840895410).

Almost surely, 2^{2157746203368} is an apocalyptic number.

2157746203368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2157746203368 is an abundant number, since it is smaller than the sum of its proper divisors (4546979755992).

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

2157746203368 is a wasteful number, since it uses less digits than its factorization.

2157746203368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16658807 (or 16658800 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 2157746203368 in words is "two trillion, one hundred fifty-seven billion, seven hundred forty-six million, two hundred three thousand, three hundred sixty-eight".