8072155205 has 8 divisors (see below), whose sum is σ = 9692160504. Its totient is φ = 6454008000.

The previous prime is 8072155199. The next prime is 8072155207. The reversal of 8072155205 is 5025512708.

It can be written as a sum of positive squares in 4 ways, for example, as 322346116 + 7749809089 = 17954^2 + 88033^2 .

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

It is not a de Polignac number, because 8072155205 - 2²⁴ = 8055377989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072155207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454946 + ... + 472355.

It is an arithmetic number, because the mean of its divisors is an integer number (1211520063).

Almost surely, 2^8072155205 is an apocalyptic number.

It is an amenable number.

8072155205 is a deficient number, since it is larger than the sum of its proper divisors (1620005299).

8072155205 is a wasteful number, since it uses less digits than its factorization.

8072155205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929047.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 8072155205 is about 89845.1735208965. The cubic root of 8072155205 is about 2005.9949461060.

The spelling of 8072155205 in words is "eight billion, seventy-two million, one hundred fifty-five thousand, two hundred five".