1646376560136 has 384 divisors, whose sum is σ = 5938333689600. Its totient is φ = 398911242240.

The previous prime is 1646376560123. The next prime is 1646376560141. The reversal of 1646376560136 is 6310656736461.

1646376560136 is a `hidden beast` number, since 1 + 6 + 4 + 6 + 3 + 76 + 560 + 1 + 3 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10572730 + ... + 10727318.

It is an arithmetic number, because the mean of its divisors is an integer number (15464410650).

Almost surely, 2^{1646376560136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1646376560136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969166844800).

1646376560136 is an abundant number, since it is smaller than the sum of its proper divisors (4291957129464).

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

1646376560136 is a wasteful number, since it uses less digits than its factorization.

1646376560136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154749 (or 154742 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 1646376560136 in words is "one trillion, six hundred forty-six billion, three hundred seventy-six million, five hundred sixty thousand, one hundred thirty-six".