156320404401 has 8 divisors (see below), whose sum is σ = 238202521024. Its totient is φ = 89325945360.

The previous prime is 156320404393. The next prime is 156320404451. The reversal of 156320404401 is 104404023651.

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

It is not a de Polignac number, because 156320404401 - 2³ = 156320404393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156320404451) 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, 3721914370 + ... + 3721914411.

It is an arithmetic number, because the mean of its divisors is an integer number (29775315128).

Almost surely, 2^156320404401 is an apocalyptic number.

It is an amenable number.

156320404401 is a deficient number, since it is larger than the sum of its proper divisors (81882116623).

156320404401 is an equidigital number, since it uses as much as digits as its factorization.

156320404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443828791.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 156320404401 in words is "one hundred fifty-six billion, three hundred twenty million, four hundred four thousand, four hundred one".