156332461321 has 9 divisors (see below), whose sum is σ = 157019083533. Its totient is φ = 155648833740.

The previous prime is 156332461289. The next prime is 156332461331. The reversal of 156332461321 is 123164233651.

The square root of 156332461321 is 395389.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 156332461321 - 2⁵ = 156332461289 is a prime.

It is a super-3 number, since 3×156332461321³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156332461331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 107149690 + ... + 107151148.

It is an arithmetic number, because the mean of its divisors is an integer number (17446564837).

Almost surely, 2^156332461321 is an apocalyptic number.

156332461321 is the 395389-th square number.

156332461321 is the 197695-th centered octagonal number.

It is an amenable number.

156332461321 is a deficient number, since it is larger than the sum of its proper divisors (686622212).

156332461321 is an frugal number, since it uses more digits than its factorization.

156332461321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460 (or 1730 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

Adding to 156332461321 its reverse (123164233651), we get a palindrome (279496694972).

The spelling of 156332461321 in words is "one hundred fifty-six billion, three hundred thirty-two million, four hundred sixty-one thousand, three hundred twenty-one".