11661762434057 has 2 divisors, whose sum is σ = 11661762434058. Its totient is φ = 11661762434056.

The previous prime is 11661762434033. The next prime is 11661762434071. The reversal of 11661762434057 is 75043426716611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7662798366976 + 3998964067081 = 2768176^2 + 1999741^2 .

It is a cyclic number.

It is not a de Polignac number, because 11661762434057 - 2¹⁶ = 11661762368521 is a prime.

It is not a weakly prime, because it can be changed into another prime (11661762431057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830881217028 + 5830881217029.

It is an arithmetic number, because the mean of its divisors is an integer number (5830881217029).

Almost surely, 2^{11661762434057} is an apocalyptic number.

It is an amenable number.

11661762434057 is a deficient number, since it is larger than the sum of its proper divisors (1).

11661762434057 is an equidigital number, since it uses as much as digits as its factorization.

11661762434057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 11661762434057 in words is "eleven trillion, six hundred sixty-one billion, seven hundred sixty-two million, four hundred thirty-four thousand, fifty-seven".