8215616265081 has 8 divisors (see below), whose sum is σ = 11331884503680. Its totient is φ = 5288212768272.

The previous prime is 8215616265067. The next prime is 8215616265127. The reversal of 8215616265081 is 1805626165128.

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

It is not a de Polignac number, because 8215616265081 - 2¹³ = 8215616256889 is a prime.

It is a super-2 number, since 2×8215616265081² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8215616265581) 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, 47216185345 + ... + 47216185518.

It is an arithmetic number, because the mean of its divisors is an integer number (1416485562960).

Almost surely, 2^{8215616265081} is an apocalyptic number.

It is an amenable number.

8215616265081 is a deficient number, since it is larger than the sum of its proper divisors (3116268238599).

8215616265081 is a wasteful number, since it uses less digits than its factorization.

8215616265081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94432370895.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 8215616265081 in words is "eight trillion, two hundred fifteen billion, six hundred sixteen million, two hundred sixty-five thousand, eighty-one".