39669153081361 has 2 divisors, whose sum is σ = 39669153081362. Its totient is φ = 39669153081360.

The previous prime is 39669153081319. The next prime is 39669153081449. The reversal of 39669153081361 is 16318035196693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39559885812225 + 109267269136 = 6289665^2 + 330556^2 .

It is a cyclic number.

It is not a de Polignac number, because 39669153081361 - 2¹³ = 39669153073169 is a prime.

It is a super-2 number, since 2×39669153081361² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39669153081361.

It is not a weakly prime, because it can be changed into another prime (39669153084361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19834576540680 + 19834576540681.

It is an arithmetic number, because the mean of its divisors is an integer number (19834576540681).

Almost surely, 2^{39669153081361} is an apocalyptic number.

It is an amenable number.

39669153081361 is a deficient number, since it is larger than the sum of its proper divisors (1).

39669153081361 is an equidigital number, since it uses as much as digits as its factorization.

39669153081361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 39669153081361 in words is "thirty-nine trillion, six hundred sixty-nine billion, one hundred fifty-three million, eighty-one thousand, three hundred sixty-one".