271664034455497 has 2 divisors, whose sum is σ = 271664034455498. Its totient is φ = 271664034455496.

The previous prime is 271664034455477. The next prime is 271664034455519. The reversal of 271664034455497 is 794554430466172.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207121144023616 + 64542890431881 = 14391704^2 + 8033859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271664034455497 is a prime.

It is a super-2 number, since 2×271664034455497² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (271664034455417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135832017227748 + 135832017227749.

It is an arithmetic number, because the mean of its divisors is an integer number (135832017227749).

Almost surely, 2^{271664034455497} is an apocalyptic number.

It is an amenable number.

271664034455497 is a deficient number, since it is larger than the sum of its proper divisors (1).

271664034455497 is an equidigital number, since it uses as much as digits as its factorization.

271664034455497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 609638400, while the sum is 67.

The spelling of 271664034455497 in words is "two hundred seventy-one trillion, six hundred sixty-four billion, thirty-four million, four hundred fifty-five thousand, four hundred ninety-seven".