2206130865478 has 4 divisors (see below), whose sum is σ = 3309196298220. Its totient is φ = 1103065432738.

The previous prime is 2206130865473. The next prime is 2206130865511. The reversal of 2206130865478 is 8745680316022.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2206130865478² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206130865473) by changing a digit.

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 as a sum of consecutive naturals, namely, 551532716368 + ... + 551532716371.

It is an arithmetic number, because the mean of its divisors is an integer number (827299074555).

Almost surely, 2^{2206130865478} is an apocalyptic number.

2206130865478 is a deficient number, since it is larger than the sum of its proper divisors (1103065432742).

2206130865478 is a wasteful number, since it uses less digits than its factorization.

2206130865478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103065432741.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 2206130865478 in words is "two trillion, two hundred six billion, one hundred thirty million, eight hundred sixty-five thousand, four hundred seventy-eight".