6164621125 has 16 divisors (see below), whose sum is σ = 8285252976. Its totient is φ = 4552334400.

The previous prime is 6164621081. The next prime is 6164621129. The reversal of 6164621125 is 5211264616.

It can be written as a sum of positive squares in 8 ways, for example, as 3877677441 + 2286943684 = 62271^2 + 47822^2 .

It is not a de Polignac number, because 6164621125 - 2¹⁷ = 6164490053 is a prime.

It is a super-2 number, since 2×6164621125² = 76005107229592531250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6164621129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1895182 + ... + 1898431.

It is an arithmetic number, because the mean of its divisors is an integer number (517828311).

Almost surely, 2^6164621125 is an apocalyptic number.

6164621125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6164621125 is a deficient number, since it is larger than the sum of its proper divisors (2120631851).

6164621125 is a wasteful number, since it uses less digits than its factorization.

6164621125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793641 (or 3793631 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 6164621125 is about 78515.1012544721. The cubic root of 6164621125 is about 1833.5895707048.

The spelling of 6164621125 in words is "six billion, one hundred sixty-four million, six hundred twenty-one thousand, one hundred twenty-five".