8206155442594 has 4 divisors (see below), whose sum is σ = 12309233163894. Its totient is φ = 4103077721296.

The previous prime is 8206155442567. The next prime is 8206155442603. The reversal of 8206155442594 is 4952445516028.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6178023426969 + 2028132015625 = 2485563^2 + 1424125^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051538860647 + ... + 2051538860650.

Almost surely, 2^{8206155442594} is an apocalyptic number.

8206155442594 is a deficient number, since it is larger than the sum of its proper divisors (4103077721300).

8206155442594 is a wasteful number, since it uses less digits than its factorization.

8206155442594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103077721299.

The product of its (nonzero) digits is 13824000, while the sum is 55.

The spelling of 8206155442594 in words is "eight trillion, two hundred six billion, one hundred fifty-five million, four hundred forty-two thousand, five hundred ninety-four".