3666121435253 has 8 divisors (see below), whose sum is σ = 3707484373440. Its totient is φ = 3624762287520.

The previous prime is 3666121435213. The next prime is 3666121435261. The reversal of 3666121435253 is 3525341216663.

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 3666121435253 - 2⁶ = 3666121435189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3666121435198 and 3666121435207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666121435213) 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, 1020626 + ... + 2893772.

It is an arithmetic number, because the mean of its divisors is an integer number (463435546680).

Almost surely, 2^{3666121435253} is an apocalyptic number.

It is an amenable number.

3666121435253 is a deficient number, since it is larger than the sum of its proper divisors (41362938187).

3666121435253 is a wasteful number, since it uses less digits than its factorization.

3666121435253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895227.

The product of its digits is 2332800, while the sum is 47.

The spelling of 3666121435253 in words is "three trillion, six hundred sixty-six billion, one hundred twenty-one million, four hundred thirty-five thousand, two hundred fifty-three".