156801128063 has 2 divisors, whose sum is σ = 156801128064. Its totient is φ = 156801128062.

The previous prime is 156801128059. The next prime is 156801128087. The reversal of 156801128063 is 360821108651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156801128063 - 2² = 156801128059 is a prime.

It is a super-2 number, since 2×156801128063² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156801128063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156801128053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78400564031 + 78400564032.

It is an arithmetic number, because the mean of its divisors is an integer number (78400564032).

Almost surely, 2^156801128063 is an apocalyptic number.

156801128063 is a deficient number, since it is larger than the sum of its proper divisors (1).

156801128063 is an equidigital number, since it uses as much as digits as its factorization.

156801128063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 156801128063 in words is "one hundred fifty-six billion, eight hundred one million, one hundred twenty-eight thousand, sixty-three".