215036463504161 has 4 divisors (see below), whose sum is σ = 231577729927572. Its totient is φ = 198495197080752.

The previous prime is 215036463504143. The next prime is 215036463504199. The reversal of 215036463504161 is 161405364630512.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49947860064400 + 165088603439761 = 7067380^2 + 12848681^2 .

It is not a de Polignac number, because 215036463504161 - 2⁶ = 215036463504097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215036463500161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8270633211686 + ... + 8270633211711.

It is an arithmetic number, because the mean of its divisors is an integer number (57894432481893).

Almost surely, 2^{215036463504161} is an apocalyptic number.

It is an amenable number.

215036463504161 is a deficient number, since it is larger than the sum of its proper divisors (16541266423411).

215036463504161 is a wasteful number, since it uses less digits than its factorization.

215036463504161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16541266423410.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 215036463504161 in words is "two hundred fifteen trillion, thirty-six billion, four hundred sixty-three million, five hundred four thousand, one hundred sixty-one".