8012205540 has 72 divisors (see below), whose sum is σ = 24316201728. Its totient is φ = 2135488320.

The previous prime is 8012205499. The next prime is 8012205581. The reversal of 8012205540 is 455022108.

It is a happy number.

8012205540 is a `hidden beast` number, since 80 + 12 + 20 + 554 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (8012205499) and next prime (8012205581).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375355 + ... + 396125.

It is an arithmetic number, because the mean of its divisors is an integer number (337725024).

Almost surely, 2^8012205540 is an apocalyptic number.

It is an amenable number.

8012205540 is an abundant number, since it is smaller than the sum of its proper divisors (16303996188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8012205540 is a wasteful number, since it uses less digits than its factorization.

8012205540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22929 (or 22924 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 8012205540 is about 89510.9241377833. The cubic root of 8012205540 is about 2001.0166114963.

Adding to 8012205540 its reverse (455022108), we get a palindrome (8467227648).

The spelling of 8012205540 in words is "eight billion, twelve million, two hundred five thousand, five hundred forty".