1605132211763 has 2 divisors, whose sum is σ = 1605132211764. Its totient is φ = 1605132211762.

The previous prime is 1605132211583. The next prime is 1605132211847. The reversal of 1605132211763 is 3671122315061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1605132211763 - 2²² = 1605128017459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1605132211363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802566105881 + 802566105882.

It is an arithmetic number, because the mean of its divisors is an integer number (802566105882).

Almost surely, 2^{1605132211763} is an apocalyptic number.

1605132211763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605132211763 is an equidigital number, since it uses as much as digits as its factorization.

1605132211763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 1605132211763 in words is "one trillion, six hundred five billion, one hundred thirty-two million, two hundred eleven thousand, seven hundred sixty-three".