66400653353324 has 48 divisors (see below), whose sum is σ = 117098469118848. Its totient is φ = 32945177219328.

The previous prime is 66400653353291. The next prime is 66400653353393. The reversal of 66400653353324 is 42335335600466.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297952802 + ... + 298175574.

It is an arithmetic number, because the mean of its divisors is an integer number (2439551439976).

Almost surely, 2^{66400653353324} is an apocalyptic number.

It is an amenable number.

66400653353324 is a deficient number, since it is larger than the sum of its proper divisors (50697815765524).

66400653353324 is a wasteful number, since it uses less digits than its factorization.

66400653353324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224154 (or 224152 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 50.

The spelling of 66400653353324 in words is "sixty-six trillion, four hundred billion, six hundred fifty-three million, three hundred fifty-three thousand, three hundred twenty-four".