2016166120520 has 64 divisors (see below), whose sum is σ = 4579470691200. Its totient is φ = 798839848960.

The previous prime is 2016166120499. The next prime is 2016166120523. The reversal of 2016166120520 is 250216616102.

It is not an unprimeable number, because it can be changed into a prime (2016166120523) 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, 1292285 + ... + 2387955.

It is an arithmetic number, because the mean of its divisors is an integer number (71554229550).

Almost surely, 2^{2016166120520} is an apocalyptic number.

2016166120520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016166120520 is an abundant number, since it is smaller than the sum of its proper divisors (2563304570680).

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

2016166120520 is a wasteful number, since it uses less digits than its factorization.

2016166120520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096118 (or 1096114 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 2016166120520 in words is "two trillion, sixteen billion, one hundred sixty-six million, one hundred twenty thousand, five hundred twenty".