155799639368 has 32 divisors (see below), whose sum is σ = 306402998400. Its totient is φ = 74181765312.

The previous prime is 155799639367. The next prime is 155799639397. The reversal of 155799639368 is 863936997551.

It is not an unprimeable number, because it can be changed into a prime (155799639367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5585558 + ... + 5613381.

It is an arithmetic number, because the mean of its divisors is an integer number (9575093700).

Almost surely, 2^155799639368 is an apocalyptic number.

It is an amenable number.

155799639368 is a deficient number, since it is larger than the sum of its proper divisors (150603359032).

155799639368 is a wasteful number, since it uses less digits than its factorization.

155799639368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11199029 (or 11199025 counting only the distinct ones).

The product of its digits is 330674400, while the sum is 71.

The spelling of 155799639368 in words is "one hundred fifty-five billion, seven hundred ninety-nine million, six hundred thirty-nine thousand, three hundred sixty-eight".