16516389015390 has 64 divisors (see below), whose sum is σ = 43243318575360. Its totient is φ = 4003935210240.

The previous prime is 16516389015341. The next prime is 16516389015431. The reversal of 16516389015390 is 9351098361561.

It is a super-2 number, since 2×16516389015390² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16516389015390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52387746 + ... + 52702074.

It is an arithmetic number, because the mean of its divisors is an integer number (675676852740).

Almost surely, 2^{16516389015390} is an apocalyptic number.

16516389015390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16516389015390 is an abundant number, since it is smaller than the sum of its proper divisors (26726929559970).

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

16516389015390 is a wasteful number, since it uses less digits than its factorization.

16516389015390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473577.

The product of its (nonzero) digits is 5248800, while the sum is 57.

The spelling of 16516389015390 in words is "sixteen trillion, five hundred sixteen billion, three hundred eighty-nine million, fifteen thousand, three hundred ninety".