8154736658081 has 16 divisors (see below), whose sum is σ = 8817046925904. Its totient is φ = 7497435316224.

The previous prime is 8154736658077. The next prime is 8154736658093. The reversal of 8154736658081 is 1808566374518.

It can be written as a sum of positive squares in 8 ways, for example, as 95292603025 + 8059444055056 = 308695^2 + 2838916^2 .

It is a cyclic number.

It is not a de Polignac number, because 8154736658081 - 2² = 8154736658077 is a prime.

It is a super-2 number, since 2×8154736658081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8154736658281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36147425 + ... + 36372321.

It is an arithmetic number, because the mean of its divisors is an integer number (551065432869).

Almost surely, 2^{8154736658081} is an apocalyptic number.

It is an amenable number.

8154736658081 is a deficient number, since it is larger than the sum of its proper divisors (662310267823).

8154736658081 is a wasteful number, since it uses less digits than its factorization.

8154736658081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236020.

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 8154736658081 in words is "eight trillion, one hundred fifty-four billion, seven hundred thirty-six million, six hundred fifty-eight thousand, eighty-one".