1660796741 has 2 divisors, whose sum is σ = 1660796742. Its totient is φ = 1660796740.

The previous prime is 1660796729. The next prime is 1660796771. The reversal of 1660796741 is 1476970661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1301694241 + 359102500 = 36079^2 + 18950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1660796741 - 2⁶ = 1660796677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1660796701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830398370 + 830398371.

It is an arithmetic number, because the mean of its divisors is an integer number (830398371).

Almost surely, 2^1660796741 is an apocalyptic number.

It is an amenable number.

1660796741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660796741 is an equidigital number, since it uses as much as digits as its factorization.

1660796741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 1660796741 is about 40752.8740213497. The cubic root of 1660796741 is about 1184.2375509196.

The spelling of 1660796741 in words is "one billion, six hundred sixty million, seven hundred ninety-six thousand, seven hundred forty-one".