190397663953156 has 81 divisors (see below), whose sum is σ = 367455795358197. Its totient is φ = 86258074536480.

The previous prime is 190397663953097. The next prime is 190397663953207. The reversal of 190397663953156 is 651359366793091.

The square root of 190397663953156 is 13798466.

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., 35794302671556 + 154603361281600 = 5982834^2 + 12433960^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111408813630 + ... + 111408815338.

Almost surely, 2^{190397663953156} is an apocalyptic number.

190397663953156 is the 13798466-th square number.

It is an amenable number.

190397663953156 is a deficient number, since it is larger than the sum of its proper divisors (177058131405041).

190397663953156 is an frugal number, since it uses more digits than its factorization.

190397663953156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 744017400, while the sum is 73.

The spelling of 190397663953156 in words is "one hundred ninety trillion, three hundred ninety-seven billion, six hundred sixty-three million, nine hundred fifty-three thousand, one hundred fifty-six".