1020643616624 has 20 divisors (see below), whose sum is σ = 1979382165600. Its totient is φ = 509835315840.

The previous prime is 1020643616611. The next prime is 1020643616633. The reversal of 1020643616624 is 4266163460201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30388472 + ... + 30422039.

It is an arithmetic number, because the mean of its divisors is an integer number (98969108280).

Almost surely, 2^{1020643616624} is an apocalyptic number.

It is an amenable number.

1020643616624 is a deficient number, since it is larger than the sum of its proper divisors (958738548976).

1020643616624 is a wasteful number, since it uses less digits than its factorization.

1020643616624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60811568 (or 60811562 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 1020643616624 in words is "one trillion, twenty billion, six hundred forty-three million, six hundred sixteen thousand, six hundred twenty-four".