1656344152159 has 2 divisors, whose sum is σ = 1656344152160. Its totient is φ = 1656344152158.

The previous prime is 1656344152153. The next prime is 1656344152231. The reversal of 1656344152159 is 9512514436561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1656344152159 - 2²¹ = 1656342055007 is a prime.

It is a super-2 number, since 2×1656344152159² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1656344152153) 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, 828172076079 + 828172076080.

It is an arithmetic number, because the mean of its divisors is an integer number (828172076080).

Almost surely, 2^{1656344152159} is an apocalyptic number.

1656344152159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1656344152159 is an equidigital number, since it uses as much as digits as its factorization.

1656344152159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 52.

The spelling of 1656344152159 in words is "one trillion, six hundred fifty-six billion, three hundred forty-four million, one hundred fifty-two thousand, one hundred fifty-nine".