2611161164431 has 8 divisors (see below), whose sum is σ = 2721758957360. Its totient is φ = 2502669996288.

The previous prime is 2611161164399. The next prime is 2611161164453. The reversal of 2611161164431 is 1344611611162.

2611161164431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2611161164431 - 2⁵ = 2611161164399 is a prime.

It is a super-2 number, since 2×2611161164431² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611161161431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526653666 + ... + 526658623.

It is an arithmetic number, because the mean of its divisors is an integer number (340219869670).

Almost surely, 2^{2611161164431} is an apocalyptic number.

2611161164431 is a deficient number, since it is larger than the sum of its proper divisors (110597792929).

2611161164431 is a wasteful number, since it uses less digits than its factorization.

2611161164431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053312393.

The product of its digits is 20736, while the sum is 37.

Adding to 2611161164431 its reverse (1344611611162), we get a palindrome (3955772775593).

The spelling of 2611161164431 in words is "two trillion, six hundred eleven billion, one hundred sixty-one million, one hundred sixty-four thousand, four hundred thirty-one".