156640733307 has 8 divisors (see below), whose sum is σ = 232060345680. Its totient is φ = 104427155520.

The previous prime is 156640733303. The next prime is 156640733351. The reversal of 156640733307 is 703337046651.

It is a happy number.

156640733307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156640733307 - 2² = 156640733303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156640733303) 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 in 7 ways as a sum of consecutive naturals, for example, 2900754294 + ... + 2900754347.

It is an arithmetic number, because the mean of its divisors is an integer number (29007543210).

Almost surely, 2^156640733307 is an apocalyptic number.

156640733307 is a deficient number, since it is larger than the sum of its proper divisors (75419612373).

156640733307 is an equidigital number, since it uses as much as digits as its factorization.

156640733307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801508650 (or 5801508644 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 45.

Adding to 156640733307 its reverse (703337046651), we get a palindrome (859977779958).

The spelling of 156640733307 in words is "one hundred fifty-six billion, six hundred forty million, seven hundred thirty-three thousand, three hundred seven".