5311151661 has 8 divisors (see below), whose sum is σ = 7086983904. Its totient is φ = 3538043600.

The previous prime is 5311151653. The next prime is 5311151687. The reversal of 5311151661 is 1661511135.

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 5311151661 - 2³ = 5311151653 is a prime.

It is a super-2 number, since 2×5311151661² = 56416663932286117842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311151161) 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, 676491 + ... + 684296.

It is an arithmetic number, because the mean of its divisors is an integer number (885872988).

Almost surely, 2^5311151661 is an apocalyptic number.

It is an amenable number.

5311151661 is a deficient number, since it is larger than the sum of its proper divisors (1775832243).

5311151661 is a wasteful number, since it uses less digits than its factorization.

5311151661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362091.

The product of its digits is 2700, while the sum is 30.

The square root of 5311151661 is about 72877.6485693659. The cubic root of 5311151661 is about 1744.7353792325.

Adding to 5311151661 its reverse (1661511135), we get a palindrome (6972662796).

The spelling of 5311151661 in words is "five billion, three hundred eleven million, one hundred fifty-one thousand, six hundred sixty-one".