20648330161650 has 96 divisors (see below), whose sum is σ = 56911316966400. Its totient is φ = 5504895950400.

The previous prime is 20648330161649. The next prime is 20648330161727. The reversal of 20648330161650 is 5616103384602.

20648330161650 is a `hidden beast` number, since 2 + 0 + 6 + 483 + 3 + 0 + 1 + 6 + 165 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20648330161596 and 20648330161605.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3775860 + ... + 7453440.

It is an arithmetic number, because the mean of its divisors is an integer number (592826218400).

Almost surely, 2^{20648330161650} is an apocalyptic number.

20648330161650 is an abundant number, since it is smaller than the sum of its proper divisors (36262986804750).

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

20648330161650 is a wasteful number, since it uses less digits than its factorization.

20648330161650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681761 (or 3681750 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 20648330161650 in words is "twenty trillion, six hundred forty-eight billion, three hundred thirty million, one hundred sixty-one thousand, six hundred fifty".