1663165465416 has 96 divisors (see below), whose sum is σ = 5543884906560. Its totient is φ = 438637044096.

The previous prime is 1663165465363. The next prime is 1663165465417. The reversal of 1663165465416 is 6145645613661.

1663165465416 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 165 + 4 + 65 + 416 = 666.

It is a super-3 number, since 3×1663165465416³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1663165465417) 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, 126913890 + ... + 126926993.

It is an arithmetic number, because the mean of its divisors is an integer number (57748801110).

Almost surely, 2^{1663165465416} is an apocalyptic number.

It is an amenable number.

1663165465416 is an abundant number, since it is smaller than the sum of its proper divisors (3880719441144).

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

1663165465416 is a wasteful number, since it uses less digits than its factorization.

1663165465416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253840915 (or 253840908 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 1663165465416 in words is "one trillion, six hundred sixty-three billion, one hundred sixty-five million, four hundred sixty-five thousand, four hundred sixteen".