5311161638 has 16 divisors (see below), whose sum is σ = 7995800736. Its totient is φ = 2645912640.

The previous prime is 5311161631. The next prime is 5311161643. The reversal of 5311161638 is 8361611135.

It is a junction number, because it is equal to n+sod(n) for n = 5311161598 and 5311161607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311161631) 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, 681170 + ... + 688922.

It is an arithmetic number, because the mean of its divisors is an integer number (499737546).

Almost surely, 2^5311161638 is an apocalyptic number.

5311161638 is a deficient number, since it is larger than the sum of its proper divisors (2684639098).

5311161638 is a wasteful number, since it uses less digits than its factorization.

5311161638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959.

The product of its digits is 12960, while the sum is 35.

The square root of 5311161638 is about 72877.7170196762. The cubic root of 5311161638 is about 1744.7364717271.

The spelling of 5311161638 in words is "five billion, three hundred eleven million, one hundred sixty-one thousand, six hundred thirty-eight".