15670731551 has 2 divisors, whose sum is σ = 15670731552. Its totient is φ = 15670731550.

The previous prime is 15670731533. The next prime is 15670731553. The reversal of 15670731551 is 15513707651.

15670731551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15670731551 - 2¹⁰ = 15670730527 is a prime.

Together with 15670731553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 15670731499 and 15670731508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15670731553) 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 as a sum of consecutive naturals, namely, 7835365775 + 7835365776.

It is an arithmetic number, because the mean of its divisors is an integer number (7835365776).

Almost surely, 2^15670731551 is an apocalyptic number.

15670731551 is a deficient number, since it is larger than the sum of its proper divisors (1).

15670731551 is an equidigital number, since it uses as much as digits as its factorization.

15670731551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110250, while the sum is 41.

The spelling of 15670731551 in words is "fifteen billion, six hundred seventy million, seven hundred thirty-one thousand, five hundred fifty-one".