40247983161 has 15 divisors (see below), whose sum is σ = 60126227733. Its totient is φ = 26830785060.

The previous prime is 40247983159. The next prime is 40247983201. The reversal of 40247983161 is 16138974204.

The square root of 40247983161 is 200619.

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

40247983161 is a `hidden beast` number, since 4 + 0 + 247 + 98 + 316 + 1 = 666.

It is not a de Polignac number, because 40247983161 - 2¹ = 40247983159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40247983261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1794426 + ... + 1816716.

Almost surely, 2^40247983161 is an apocalyptic number.

40247983161 is the 200619-th square number.

40247983161 is the 100310-th centered octagonal number.

It is an amenable number.

40247983161 is a deficient number, since it is larger than the sum of its proper divisors (19878244572).

40247983161 is an frugal number, since it uses more digits than its factorization.

40247983161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44594 (or 22294 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 40247983161 in words is "forty billion, two hundred forty-seven million, nine hundred eighty-three thousand, one hundred sixty-one".