1602442220761 has 2 divisors, whose sum is σ = 1602442220762. Its totient is φ = 1602442220760.

The previous prime is 1602442220741. The next prime is 1602442220767. The reversal of 1602442220761 is 1670222442061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952685315136 + 649756905625 = 976056^2 + 806075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602442220761 - 2¹⁹ = 1602441696473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1602442220761.

It is not a weakly prime, because it can be changed into another prime (1602442220767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801221110380 + 801221110381.

It is an arithmetic number, because the mean of its divisors is an integer number (801221110381).

Almost surely, 2^{1602442220761} is an apocalyptic number.

It is an amenable number.

1602442220761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602442220761 is an equidigital number, since it uses as much as digits as its factorization.

1602442220761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 1602442220761 in words is "one trillion, six hundred two billion, four hundred forty-two million, two hundred twenty thousand, seven hundred sixty-one".