2016067640 has 32 divisors (see below), whose sum is σ = 4682482560. Its totient is φ = 780412800.

The previous prime is 2016067639. The next prime is 2016067657. The reversal of 2016067640 is 467606102.

It is a junction number, because it is equal to n+sod(n) for n = 2016067597 and 2016067606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811691 + ... + 814170.

It is an arithmetic number, because the mean of its divisors is an integer number (146327580).

Almost surely, 2^2016067640 is an apocalyptic number.

2016067640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016067640 is an abundant number, since it is smaller than the sum of its proper divisors (2666414920).

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

2016067640 is a wasteful number, since it uses less digits than its factorization.

2016067640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625903 (or 1625899 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2016067640 is about 44900.6418662362. The cubic root of 2016067640 is about 1263.2860476326.

The spelling of 2016067640 in words is "two billion, sixteen million, sixty-seven thousand, six hundred forty".