2016989332956 has 180 divisors, whose sum is σ = 5712081971904. Its totient is φ = 620343360000.

The previous prime is 2016989332931. The next prime is 2016989333017. The reversal of 2016989332956 is 6592339896102.

2016989332956 is a `hidden beast` number, since 20 + 169 + 89 + 3 + 329 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2016989332893 and 2016989332902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 153364981 + ... + 153378131.

Almost surely, 2^{2016989332956} is an apocalyptic number.

2016989332956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2016989332956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856040985952).

2016989332956 is an abundant number, since it is smaller than the sum of its proper divisors (3695092638948).

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

2016989332956 is a wasteful number, since it uses less digits than its factorization.

2016989332956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15994 (or 15970 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 2016989332956 in words is "two trillion, sixteen billion, nine hundred eighty-nine million, three hundred thirty-two thousand, nine hundred fifty-six".