271695891601 has 4 divisors (see below), whose sum is σ = 278014400752. Its totient is φ = 265377382452.

The previous prime is 271695891557. The next prime is 271695891653. The reversal of 271695891601 is 106198596172.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 271695891601 - 2²³ = 271687502993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (271695897601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3159254511 + ... + 3159254596.

It is an arithmetic number, because the mean of its divisors is an integer number (69503600188).

Almost surely, 2^271695891601 is an apocalyptic number.

It is an amenable number.

271695891601 is a deficient number, since it is larger than the sum of its proper divisors (6318509151).

271695891601 is an equidigital number, since it uses as much as digits as its factorization.

271695891601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6318509150.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 271695891601 in words is "two hundred seventy-one billion, six hundred ninety-five million, eight hundred ninety-one thousand, six hundred one".