16361780670663 has 16 divisors (see below), whose sum is σ = 22738075416576. Its totient is φ = 10453502207520.

The previous prime is 16361780670649. The next prime is 16361780670713. The reversal of 16361780670663 is 36607608716361.

It is a happy number.

It is not a de Polignac number, because 16361780670663 - 2¹⁶ = 16361780605127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16361780670597 and 16361780670606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16361780670563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854034720 + ... + 854053877.

It is an arithmetic number, because the mean of its divisors is an integer number (1421129713536).

Almost surely, 2^{16361780670663} is an apocalyptic number.

16361780670663 is a deficient number, since it is larger than the sum of its proper divisors (6376294745913).

16361780670663 is a wasteful number, since it uses less digits than its factorization.

16361780670663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708088734.

The product of its (nonzero) digits is 27433728, while the sum is 60.

The spelling of 16361780670663 in words is "sixteen trillion, three hundred sixty-one billion, seven hundred eighty million, six hundred seventy thousand, six hundred sixty-three".