6161065501 has 4 divisors (see below), whose sum is σ = 6265490400. Its totient is φ = 6056640604.

The previous prime is 6161065487. The next prime is 6161065511. The reversal of 6161065501 is 1055601616.

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 not a de Polignac number, because 6161065501 - 2⁷ = 6161065373 is a prime.

It is a super-2 number, since 2×6161065501² = 75917456215224762002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161065511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52212361 + ... + 52212478.

It is an arithmetic number, because the mean of its divisors is an integer number (1566372600).

Almost surely, 2^6161065501 is an apocalyptic number.

It is an amenable number.

6161065501 is a deficient number, since it is larger than the sum of its proper divisors (104424899).

6161065501 is a wasteful number, since it uses less digits than its factorization.

6161065501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104424898.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 6161065501 is about 78492.4550577952. The cubic root of 6161065501 is about 1833.2369775878.

The spelling of 6161065501 in words is "six billion, one hundred sixty-one million, sixty-five thousand, five hundred one".