182221615031681 has 8 divisors (see below), whose sum is σ = 183239984854080. Its totient is φ = 181203249342672.

The previous prime is 182221615031669. The next prime is 182221615031767. The reversal of 182221615031681 is 186130516122281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-182221615031681 is a prime.

It is a super-2 number, since 2×182221615031681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182221815031681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144450236 + ... + 145706258.

It is an arithmetic number, because the mean of its divisors is an integer number (22904998106760).

Almost surely, 2^{182221615031681} is an apocalyptic number.

It is an amenable number.

182221615031681 is a deficient number, since it is larger than the sum of its proper divisors (1018369822399).

182221615031681 is a wasteful number, since it uses less digits than its factorization.

182221615031681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066695.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 182221615031681 in words is "one hundred eighty-two trillion, two hundred twenty-one billion, six hundred fifteen million, thirty-one thousand, six hundred eighty-one".