20163465747 has 6 divisors (see below), whose sum is σ = 29125006092. Its totient is φ = 13442310492.

The previous prime is 20163465737. The next prime is 20163465761. The reversal of 20163465747 is 74756436102.

20163465747 is a `hidden beast` number, since 2 + 0 + 1 + 634 + 6 + 5 + 7 + 4 + 7 = 666.

It is not a de Polignac number, because 20163465747 - 2¹¹ = 20163463699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20163465737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1120192533 + ... + 1120192550.

It is an arithmetic number, because the mean of its divisors is an integer number (4854167682).

Almost surely, 2^20163465747 is an apocalyptic number.

20163465747 is a deficient number, since it is larger than the sum of its proper divisors (8961540345).

20163465747 is a wasteful number, since it uses less digits than its factorization.

20163465747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240385089 (or 2240385086 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 20163465747 in words is "twenty billion, one hundred sixty-three million, four hundred sixty-five thousand, seven hundred forty-seven".