8212158552615 has 16 divisors (see below), whose sum is σ = 13139587212288. Its totient is φ = 4379773385376.

The previous prime is 8212158552613. The next prime is 8212158552671. The reversal of 8212158552615 is 5162558512128.

It is not a de Polignac number, because 8212158552615 - 2¹ = 8212158552613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212158552613) 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, 1228627 + ... + 4234836.

It is an arithmetic number, because the mean of its divisors is an integer number (821224200768).

Almost surely, 2^{8212158552615} is an apocalyptic number.

8212158552615 is a deficient number, since it is larger than the sum of its proper divisors (4927428659673).

8212158552615 is a wasteful number, since it uses less digits than its factorization.

8212158552615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563678.

The product of its digits is 1920000, while the sum is 51.

The spelling of 8212158552615 in words is "eight trillion, two hundred twelve billion, one hundred fifty-eight million, five hundred fifty-two thousand, six hundred fifteen".