156885342533 has 2 divisors, whose sum is σ = 156885342534. Its totient is φ = 156885342532.

The previous prime is 156885342511. The next prime is 156885342553. The reversal of 156885342533 is 335243588651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139952306404 + 16933036129 = 374102^2 + 130127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156885342533 is a prime.

It is a super-2 number, since 2×156885342533² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156885342553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78442671266 + 78442671267.

It is an arithmetic number, because the mean of its divisors is an integer number (78442671267).

Almost surely, 2^156885342533 is an apocalyptic number.

It is an amenable number.

156885342533 is a deficient number, since it is larger than the sum of its proper divisors (1).

156885342533 is an equidigital number, since it uses as much as digits as its factorization.

156885342533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368000, while the sum is 53.

The spelling of 156885342533 in words is "one hundred fifty-six billion, eight hundred eighty-five million, three hundred forty-two thousand, five hundred thirty-three".