10161982538 has 4 divisors (see below), whose sum is σ = 15242973810. Its totient is φ = 5080991268.

The previous prime is 10161982529. The next prime is 10161982609. The reversal of 10161982538 is 83528916101.

10161982538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6233576209 + 3928406329 = 78953^2 + 62677^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540495633 + ... + 2540495636.

Almost surely, 2^10161982538 is an apocalyptic number.

10161982538 is a deficient number, since it is larger than the sum of its proper divisors (5080991272).

10161982538 is an equidigital number, since it uses as much as digits as its factorization.

10161982538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080991271.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 10161982538 in words is "ten billion, one hundred sixty-one million, nine hundred eighty-two thousand, five hundred thirty-eight".