6106218021 has 32 divisors (see below), whose sum is σ = 9222720000. Its totient is φ = 3992099904.

The previous prime is 6106217983. The next prime is 6106218023. The reversal of 6106218021 is 1208126016.

6106218021 is a `hidden beast` number, since 6 + 10 + 621 + 8 + 0 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6106218021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6106218023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308211 + ... + 327423.

It is an arithmetic number, because the mean of its divisors is an integer number (288210000).

Almost surely, 2^6106218021 is an apocalyptic number.

It is an amenable number.

6106218021 is a deficient number, since it is larger than the sum of its proper divisors (3116501979).

6106218021 is a wasteful number, since it uses less digits than its factorization.

6106218021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19450 (or 19444 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 6106218021 is about 78142.2934204007. The cubic root of 6106218021 is about 1827.7807631973.

The spelling of 6106218021 in words is "six billion, one hundred six million, two hundred eighteen thousand, twenty-one".