156040000321 has 8 divisors (see below), whose sum is σ = 157023101664. Its totient is φ = 155059673280.

The previous prime is 156040000301. The next prime is 156040000327. The reversal of 156040000321 is 123000040651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156040000321 - 2¹⁵ = 156039967553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156040000292 and 156040000301.

It is not an unprimeable number, because it can be changed into a prime (156040000327) 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 7 ways as a sum of consecutive naturals, for example, 580675 + ... + 805768.

It is an arithmetic number, because the mean of its divisors is an integer number (19627887708).

Almost surely, 2^156040000321 is an apocalyptic number.

It is an amenable number.

156040000321 is a deficient number, since it is larger than the sum of its proper divisors (983101343).

156040000321 is a wasteful number, since it uses less digits than its factorization.

156040000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387151.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 156040000321 its reverse (123000040651), we get a palindrome (279040040972).

The spelling of 156040000321 in words is "one hundred fifty-six billion, forty million, three hundred twenty-one", and thus it is an aban number.