11660578373669 has 2 divisors, whose sum is σ = 11660578373670. Its totient is φ = 11660578373668.

The previous prime is 11660578373651. The next prime is 11660578373677. The reversal of 11660578373669 is 96637387506611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9867376172644 + 1793202201025 = 3141238^2 + 1339105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11660578373669 is a prime.

It is a super-2 number, since 2×11660578373669² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11660578373599 and 11660578373608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660578373629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830289186834 + 5830289186835.

It is an arithmetic number, because the mean of its divisors is an integer number (5830289186835).

Almost surely, 2^{11660578373669} is an apocalyptic number.

It is an amenable number.

11660578373669 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660578373669 is an equidigital number, since it uses as much as digits as its factorization.

11660578373669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 11660578373669 in words is "eleven trillion, six hundred sixty billion, five hundred seventy-eight million, three hundred seventy-three thousand, six hundred sixty-nine".