4145332653668 has 6 divisors (see below), whose sum is σ = 7254332143926. Its totient is φ = 2072666326832.

The previous prime is 4145332653619. The next prime is 4145332653691. The reversal of 4145332653668 is 8663562335414.

It can be written as a sum of positive squares in only one way, i.e., 2266656713764 + 1878675939904 = 1505542^2 + 1370648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518166581705 + ... + 518166581712.

It is an arithmetic number, because the mean of its divisors is an integer number (1209055357321).

Almost surely, 2^{4145332653668} is an apocalyptic number.

It is an amenable number.

4145332653668 is a deficient number, since it is larger than the sum of its proper divisors (3108999490258).

4145332653668 is a wasteful number, since it uses less digits than its factorization.

4145332653668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036333163421 (or 1036333163419 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 56.

The spelling of 4145332653668 in words is "four trillion, one hundred forty-five billion, three hundred thirty-two million, six hundred fifty-three thousand, six hundred sixty-eight".