16064687287820 has 24 divisors (see below), whose sum is σ = 33737172084000. Its totient is φ = 6425621814272.

The previous prime is 16064687287793. The next prime is 16064687287867. The reversal of 16064687287820 is 2878278646061.

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, 15297920 + ... + 16314279.

It is an arithmetic number, because the mean of its divisors is an integer number (1405715503500).

Almost surely, 2^{16064687287820} is an apocalyptic number.

16064687287820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16064687287820 is an abundant number, since it is smaller than the sum of its proper divisors (17672484796180).

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

16064687287820 is a wasteful number, since it uses less digits than its factorization.

16064687287820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31637617 (or 31637615 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 65.

The spelling of 16064687287820 in words is "sixteen trillion, sixty-four billion, six hundred eighty-seven million, two hundred eighty-seven thousand, eight hundred twenty".