156320345664029 has 2 divisors, whose sum is σ = 156320345664030. Its totient is φ = 156320345664028.

The previous prime is 156320345663971. The next prime is 156320345664037. The reversal of 156320345664029 is 920466543023651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90778934728804 + 65541410935225 = 9527798^2 + 8095765^2 .

It is a cyclic number.

It is not a de Polignac number, because 156320345664029 - 2³² = 156316050696733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156320345664079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78160172832014 + 78160172832015.

It is an arithmetic number, because the mean of its divisors is an integer number (78160172832015).

Almost surely, 2^{156320345664029} is an apocalyptic number.

It is an amenable number.

156320345664029 is a deficient number, since it is larger than the sum of its proper divisors (1).

156320345664029 is an equidigital number, since it uses as much as digits as its factorization.

156320345664029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 156320345664029 in words is "one hundred fifty-six trillion, three hundred twenty billion, three hundred forty-five million, six hundred sixty-four thousand, twenty-nine".