1705621606001 has 2 divisors, whose sum is σ = 1705621606002. Its totient is φ = 1705621606000.

The previous prime is 1705621605997. The next prime is 1705621606037. The reversal of 1705621606001 is 1006061265071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009172939776 + 696448666225 = 1004576^2 + 834535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1705621606001 - 2² = 1705621605997 is a prime.

It is not a weakly prime, because it can be changed into another prime (1705621603001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852810803000 + 852810803001.

It is an arithmetic number, because the mean of its divisors is an integer number (852810803001).

Almost surely, 2^{1705621606001} is an apocalyptic number.

It is an amenable number.

1705621606001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1705621606001 is an equidigital number, since it uses as much as digits as its factorization.

1705621606001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 1705621606001 in words is "one trillion, seven hundred five billion, six hundred twenty-one million, six hundred six thousand, one".