155950401838139 has 2 divisors, whose sum is σ = 155950401838140. Its totient is φ = 155950401838138.

The previous prime is 155950401838111. The next prime is 155950401838163. The reversal of 155950401838139 is 931838104059551.

155950401838139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155950401838139 - 2¹⁶ = 155950401772603 is a prime.

It is not a weakly prime, because it can be changed into another prime (155950406838139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77975200919069 + 77975200919070.

It is an arithmetic number, because the mean of its divisors is an integer number (77975200919070).

Almost surely, 2^{155950401838139} is an apocalyptic number.

155950401838139 is a deficient number, since it is larger than the sum of its proper divisors (1).

155950401838139 is an equidigital number, since it uses as much as digits as its factorization.

155950401838139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328000, while the sum is 62.

The spelling of 155950401838139 in words is "one hundred fifty-five trillion, nine hundred fifty billion, four hundred one million, eight hundred thirty-eight thousand, one hundred thirty-nine".