156352947841 has 4 divisors (see below), whose sum is σ = 157494210372. Its totient is φ = 155211685312.

The previous prime is 156352947827. The next prime is 156352947871. The reversal of 156352947841 is 148749253651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148749253651 = 31 ⋅4798363021.

It can be written as a sum of positive squares in 2 ways, for example, as 108652640625 + 47700307216 = 329625^2 + 218404^2 .

It is a cyclic number.

It is not a de Polignac number, because 156352947841 - 2¹³ = 156352939649 is a prime.

It is a super-2 number, since 2×156352947841² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156352947871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570631060 + ... + 570631333.

It is an arithmetic number, because the mean of its divisors is an integer number (39373552593).

Almost surely, 2^156352947841 is an apocalyptic number.

It is an amenable number.

156352947841 is a deficient number, since it is larger than the sum of its proper divisors (1141262531).

156352947841 is a wasteful number, since it uses less digits than its factorization.

156352947841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141262530.

The product of its digits is 7257600, while the sum is 55.

The spelling of 156352947841 in words is "one hundred fifty-six billion, three hundred fifty-two million, nine hundred forty-seven thousand, eight hundred forty-one".