155907397339 has 16 divisors (see below), whose sum is σ = 163241777664. Its totient is φ = 148620225600.

The previous prime is 155907397337. The next prime is 155907397351. The reversal of 155907397339 is 933793709551.

155907397339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 155907397339 - 2¹ = 155907397337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155907397337) 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 15 ways as a sum of consecutive naturals, for example, 8161279 + ... + 8180359.

It is an arithmetic number, because the mean of its divisors is an integer number (10202611104).

Almost surely, 2^155907397339 is an apocalyptic number.

155907397339 is a deficient number, since it is larger than the sum of its proper divisors (7334380325).

155907397339 is a wasteful number, since it uses less digits than its factorization.

155907397339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20298.

The product of its (nonzero) digits is 24111675, while the sum is 61.

The spelling of 155907397339 in words is "one hundred fifty-five billion, nine hundred seven million, three hundred ninety-seven thousand, three hundred thirty-nine".