156043420619 has 2 divisors, whose sum is σ = 156043420620. Its totient is φ = 156043420618.

The previous prime is 156043420591. The next prime is 156043420681. The reversal of 156043420619 is 916024340651.

156043420619 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-156043420619 is a prime.

It is a super-2 number, since 2×156043420619² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (156043420919) 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 as a sum of consecutive naturals, namely, 78021710309 + 78021710310.

It is an arithmetic number, because the mean of its divisors is an integer number (78021710310).

Almost surely, 2^156043420619 is an apocalyptic number.

156043420619 is a deficient number, since it is larger than the sum of its proper divisors (1).

156043420619 is an equidigital number, since it uses as much as digits as its factorization.

156043420619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 156043420619 in words is "one hundred fifty-six billion, forty-three million, four hundred twenty thousand, six hundred nineteen".