8516525552641 has 4 divisors (see below), whose sum is σ = 8516584664752. Its totient is φ = 8516466440532.

The previous prime is 8516525552603. The next prime is 8516525552681. The reversal of 8516525552641 is 1462555256158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8516525552641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8516525552681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29339415 + ... + 29628268.

It is an arithmetic number, because the mean of its divisors is an integer number (2129146166188).

Almost surely, 2^{8516525552641} is an apocalyptic number.

It is an amenable number.

8516525552641 is a deficient number, since it is larger than the sum of its proper divisors (59112111).

8516525552641 is a wasteful number, since it uses less digits than its factorization.

8516525552641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59112110.

The product of its digits is 14400000, while the sum is 55.

The spelling of 8516525552641 in words is "eight trillion, five hundred sixteen billion, five hundred twenty-five million, five hundred fifty-two thousand, six hundred forty-one".