20205158349 has 8 divisors (see below), whose sum is σ = 27396825120. Its totient is φ = 13241798576.

The previous prime is 20205158333. The next prime is 20205158387. The reversal of 20205158349 is 94385150202.

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

It is not a de Polignac number, because 20205158349 - 2⁴ = 20205158333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205158249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57076542 + ... + 57076895.

It is an arithmetic number, because the mean of its divisors is an integer number (3424603140).

Almost surely, 2^20205158349 is an apocalyptic number.

It is an amenable number.

20205158349 is a deficient number, since it is larger than the sum of its proper divisors (7191666771).

20205158349 is a wasteful number, since it uses less digits than its factorization.

20205158349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114153499.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 20205158349 in words is "twenty billion, two hundred five million, one hundred fifty-eight thousand, three hundred forty-nine".