262161159697 has 4 divisors (see below), whose sum is σ = 262162529280. Its totient is φ = 262159790116.

The previous prime is 262161159683. The next prime is 262161159727. The reversal of 262161159697 is 796951161262.

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 a de Polignac number, because none of the positive numbers 2^k-262161159697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (262161159607) 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, 339697 + ... + 799822.

It is an arithmetic number, because the mean of its divisors is an integer number (65540632320).

Almost surely, 2^262161159697 is an apocalyptic number.

It is an amenable number.

262161159697 is a deficient number, since it is larger than the sum of its proper divisors (1369583).

262161159697 is a wasteful number, since it uses less digits than its factorization.

262161159697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369582.

The product of its digits is 2449440, while the sum is 55.

The spelling of 262161159697 in words is "two hundred sixty-two billion, one hundred sixty-one million, one hundred fifty-nine thousand, six hundred ninety-seven".