6606432466021 has 8 divisors (see below), whose sum is σ = 6697389535704. Its totient is φ = 6515487774720.

The previous prime is 6606432466019. The next prime is 6606432466037. The reversal of 6606432466021 is 1206642346066.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3297271273921 + 3309161192100 = 1815839^2 + 1819110^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6606432466021 - 2¹ = 6606432466019 is a prime.

It is a super-2 number, since 2×6606432466021² (a number of 26 digits) 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 (6606432466321) 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 7 ways as a sum of consecutive naturals, for example, 2017270 + ... + 4157191.

It is an arithmetic number, because the mean of its divisors is an integer number (837173691963).

Almost surely, 2^{6606432466021} is an apocalyptic number.

It is an amenable number.

6606432466021 is a deficient number, since it is larger than the sum of its proper divisors (90957069683).

6606432466021 is a wasteful number, since it uses less digits than its factorization.

6606432466021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189191.

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 6606432466021 in words is "six trillion, six hundred six billion, four hundred thirty-two million, four hundred sixty-six thousand, twenty-one".