6619012161 has 16 divisors (see below), whose sum is σ = 9066714048. Its totient is φ = 4292614400.

The previous prime is 6619012139. The next prime is 6619012201. The reversal of 6619012161 is 1612109166.

It is a cyclic number.

It is not a de Polignac number, because 6619012161 - 2⁶ = 6619012097 is a prime.

It is a super-2 number, since 2×6619012161² = 87622643974931779842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6619012861) 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, 34860 + ... + 120221.

It is an arithmetic number, because the mean of its divisors is an integer number (566669628).

Almost surely, 2^6619012161 is an apocalyptic number.

It is an amenable number.

6619012161 is a deficient number, since it is larger than the sum of its proper divisors (2447701887).

6619012161 is a wasteful number, since it uses less digits than its factorization.

6619012161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155472.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 6619012161 is about 81357.3116628125. The cubic root of 6619012161 is about 1877.5768692105.

The spelling of 6619012161 in words is "six billion, six hundred nineteen million, twelve thousand, one hundred sixty-one".