156440441051 has 2 divisors, whose sum is σ = 156440441052. Its totient is φ = 156440441050.

The previous prime is 156440440997. The next prime is 156440441149. The reversal of 156440441051 is 150144044651.

156440441051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (150144044651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156440441051 - 2¹⁰ = 156440440027 is a prime.

It is a super-2 number, since 2×156440441051² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (156440441251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78220220525 + 78220220526.

It is an arithmetic number, because the mean of its divisors is an integer number (78220220526).

Almost surely, 2^156440441051 is an apocalyptic number.

156440441051 is a deficient number, since it is larger than the sum of its proper divisors (1).

156440441051 is an equidigital number, since it uses as much as digits as its factorization.

156440441051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 156440441051 in words is "one hundred fifty-six billion, four hundred forty million, four hundred forty-one thousand, fifty-one".