155214040211939 has 2 divisors, whose sum is σ = 155214040211940. Its totient is φ = 155214040211938.

The previous prime is 155214040211927. The next prime is 155214040211953. The reversal of 155214040211939 is 939112040412551.

155214040211939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155214040211939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155214040211893 and 155214040211902.

It is not a weakly prime, because it can be changed into another prime (155214040211969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77607020105969 + 77607020105970.

It is an arithmetic number, because the mean of its divisors is an integer number (77607020105970).

Almost surely, 2^{155214040211939} is an apocalyptic number.

155214040211939 is a deficient number, since it is larger than the sum of its proper divisors (1).

155214040211939 is an equidigital number, since it uses as much as digits as its factorization.

155214040211939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 155214040211939 in words is "one hundred fifty-five trillion, two hundred fourteen billion, forty million, two hundred eleven thousand, nine hundred thirty-nine".