3455665121 has 8 divisors (see below), whose sum is σ = 3482394120. Its totient is φ = 3428958208.

The previous prime is 3455665099. The next prime is 3455665133. The reversal of 3455665121 is 1215665543.

It can be written as a sum of positive squares in 4 ways, for example, as 2927521 + 3452737600 = 1711^2 + 58760^2 .

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 3455665121 - 2²² = 3451470817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3455665151) 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, 452285 + ... + 459861.

It is an arithmetic number, because the mean of its divisors is an integer number (435299265).

Almost surely, 2^3455665121 is an apocalyptic number.

It is an amenable number.

3455665121 is a deficient number, since it is larger than the sum of its proper divisors (26728999).

3455665121 is a wasteful number, since it uses less digits than its factorization.

3455665121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043.

The product of its digits is 108000, while the sum is 38.

The square root of 3455665121 is about 58784.9055540621. The cubic root of 3455665121 is about 1511.8564248357.

The spelling of 3455665121 in words is "three billion, four hundred fifty-five million, six hundred sixty-five thousand, one hundred twenty-one".