19795945931216 has 80 divisors (see below), whose sum is σ = 47208241645824. Its totient is φ = 7830944428032.

The previous prime is 19795945931207. The next prime is 19795945931219. The reversal of 19795945931216 is 61213954959791.

It is a self number, because there is not a number n which added to its sum of digits gives 19795945931216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19795945931219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27611456 + ... + 28319328.

Almost surely, 2^{19795945931216} is an apocalyptic number.

19795945931216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19795945931216 is an abundant number, since it is smaller than the sum of its proper divisors (27412295714608).

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

19795945931216 is a wasteful number, since it uses less digits than its factorization.

19795945931216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727108 (or 727102 counting only the distinct ones).

The product of its digits is 165337200, while the sum is 71.

The spelling of 19795945931216 in words is "nineteen trillion, seven hundred ninety-five billion, nine hundred forty-five million, nine hundred thirty-one thousand, two hundred sixteen".