1660772007073 has 2 divisors, whose sum is σ = 1660772007074. Its totient is φ = 1660772007072.

The previous prime is 1660772007053. The next prime is 1660772007113. The reversal of 1660772007073 is 3707002770661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247447739664 + 413324267409 = 1116892^2 + 642903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660772007073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1660772007023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830386003536 + 830386003537.

It is an arithmetic number, because the mean of its divisors is an integer number (830386003537).

Almost surely, 2^{1660772007073} is an apocalyptic number.

It is an amenable number.

1660772007073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660772007073 is an equidigital number, since it uses as much as digits as its factorization.

1660772007073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518616, while the sum is 46.

The spelling of 1660772007073 in words is "one trillion, six hundred sixty billion, seven hundred seventy-two million, seven thousand, seventy-three".