2016138728502 has 24 divisors (see below), whose sum is σ = 4598211135960. Its totient is φ = 636675387840.

The previous prime is 2016138728441. The next prime is 2016138728503. The reversal of 2016138728502 is 2058278316102.

2016138728502 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 138 + 7 + 2 + 8 + 502 = 666.

It is a super-2 number, since 2×2016138728502² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016138728503) by changing a digit.

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, 2947570899 + ... + 2947571582.

It is an arithmetic number, because the mean of its divisors is an integer number (191592130665).

Almost surely, 2^{2016138728502} is an apocalyptic number.

2016138728502 is an abundant number, since it is smaller than the sum of its proper divisors (2582072407458).

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

2016138728502 is a wasteful number, since it uses less digits than its factorization.

2016138728502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895142508 (or 5895142505 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 2016138728502 in words is "two trillion, sixteen billion, one hundred thirty-eight million, seven hundred twenty-eight thousand, five hundred two".