16495912218256 has 45 divisors (see below), whose sum is σ = 33732144224553. Its totient is φ = 7813706941440.

The previous prime is 16495912218239. The next prime is 16495912218341. The reversal of 16495912218256 is 65281221959461.

It is a happy number.

The square root of 16495912218256 is 4061516.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10858896640656 + 5637015577600 = 3295284^2 + 2374240^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16495912218194 and 16495912218203.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 308648496 + ... + 308701936.

Almost surely, 2^{16495912218256} is an apocalyptic number.

16495912218256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

16495912218256 is the 4061516-th square number.

It is an amenable number.

16495912218256 is an abundant number, since it is smaller than the sum of its proper divisors (17236232006297).

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

16495912218256 is an frugal number, since it uses more digits than its factorization.

16495912218256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106928 (or 53462 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The spelling of 16495912218256 in words is "sixteen trillion, four hundred ninety-five billion, nine hundred twelve million, two hundred eighteen thousand, two hundred fifty-six".