19163346739216 has 45 divisors (see below), whose sum is σ = 37201558608669. Its totient is φ = 9562981034688.

The previous prime is 19163346739193. The next prime is 19163346739267. The reversal of 19163346739216 is 61293764336191.

The square root of 19163346739216 is 4377596.

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., 1106830243600 + 18056516495616 = 1052060^2 + 4249296^2 .

It is a Duffinian number.

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, 14936356911 + ... + 14936358193.

Almost surely, 2^{19163346739216} is an apocalyptic number.

19163346739216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19163346739216 is the 4377596-th square number.

It is an amenable number.

19163346739216 is a deficient number, since it is larger than the sum of its proper divisors (18038211869453).

19163346739216 is an frugal number, since it uses more digits than its factorization.

19163346739216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 2138 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 61.

The spelling of 19163346739216 in words is "nineteen trillion, one hundred sixty-three billion, three hundred forty-six million, seven hundred thirty-nine thousand, two hundred sixteen".