6181215149916 has 36 divisors (see below), whose sum is σ = 15776434793392. Its totient is φ = 2040401116224.

The previous prime is 6181215149849. The next prime is 6181215149951. The reversal of 6181215149916 is 6199415121816.

6181215149916 is a `hidden beast` number, since 6 + 1 + 8 + 1 + 21 + 514 + 99 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833493481 + ... + 833500896.

Almost surely, 2^{6181215149916} is an apocalyptic number.

It is an amenable number.

6181215149916 is an abundant number, since it is smaller than the sum of its proper divisors (9595219643476).

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

6181215149916 is a wasteful number, since it uses less digits than its factorization.

6181215149916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666994490 (or 1666994485 counting only the distinct ones).

The product of its digits is 933120, while the sum is 54.

The spelling of 6181215149916 in words is "six trillion, one hundred eighty-one billion, two hundred fifteen million, one hundred forty-nine thousand, nine hundred sixteen".