6624376021121 has 8 divisors (see below), whose sum is σ = 7255908826920. Its totient is φ = 6019716951808.

The previous prime is 6624376021103. The next prime is 6624376021129. The reversal of 6624376021121 is 1211206734266.

It can be written as a sum of positive squares in 4 ways, for example, as 2250192004096 + 4374184017025 = 1500064^2 + 2091455^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6624376021121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6624376021129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6718433606 + ... + 6718434591.

It is an arithmetic number, because the mean of its divisors is an integer number (906988603365).

Almost surely, 2^{6624376021121} is an apocalyptic number.

It is an amenable number.

6624376021121 is a deficient number, since it is larger than the sum of its proper divisors (631532805799).

6624376021121 is a wasteful number, since it uses less digits than its factorization.

6624376021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13436868243.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 6624376021121 in words is "six trillion, six hundred twenty-four billion, three hundred seventy-six million, twenty-one thousand, one hundred twenty-one".