6996605121 has 40 divisors (see below), whose sum is σ = 11667098784. Its totient is φ = 4141730880.

The previous prime is 6996605089. The next prime is 6996605141. The reversal of 6996605121 is 1215066996.

It is a happy number.

It is not a de Polignac number, because 6996605121 - 2⁵ = 6996605089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6996605141) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52996 + ... + 129621.

Almost surely, 2^6996605121 is an apocalyptic number.

It is an amenable number.

6996605121 is a deficient number, since it is larger than the sum of its proper divisors (4670493663).

6996605121 is a wasteful number, since it uses less digits than its factorization.

6996605121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182683 (or 182674 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 6996605121 is about 83645.7119104142. The cubic root of 6996605121 is about 1912.6218865801.

The spelling of 6996605121 in words is "six billion, nine hundred ninety-six million, six hundred five thousand, one hundred twenty-one".