1653716671 has 2 divisors, whose sum is σ = 1653716672. Its totient is φ = 1653716670.

The previous prime is 1653716641. The next prime is 1653716707. The reversal of 1653716671 is 1766173561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1653716671 - 2⁹ = 1653716159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653716611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826858335 + 826858336.

It is an arithmetic number, because the mean of its divisors is an integer number (826858336).

Almost surely, 2^1653716671 is an apocalyptic number.

1653716671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653716671 is an equidigital number, since it uses as much as digits as its factorization.

1653716671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 1653716671 is about 40665.9153468848. The cubic root of 1653716671 is about 1182.5523301340.

The spelling of 1653716671 in words is "one billion, six hundred fifty-three million, seven hundred sixteen thousand, six hundred seventy-one".