2061664330624 has 32 divisors (see below), whose sum is σ = 4114415087640. Its totient is φ = 1029026818560.

The previous prime is 2061664330591. The next prime is 2061664330697. The reversal of 2061664330624 is 4260334661602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14030899 + ... + 14177074.

Almost surely, 2^{2061664330624} is an apocalyptic number.

It is an amenable number.

2061664330624 is a deficient number, since it is larger than the sum of its proper divisors (2052750757016).

2061664330624 is an equidigital number, since it uses as much as digits as its factorization.

2061664330624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28208558 (or 28208546 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 2061664330624 in words is "two trillion, sixty-one billion, six hundred sixty-four million, three hundred thirty thousand, six hundred twenty-four".