21152530520624 has 10 divisors (see below), whose sum is σ = 40983027883740. Its totient is φ = 10576265260304.

The previous prime is 21152530520617. The next prime is 21152530520633. The reversal of 21152530520624 is 42602503525112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661016578754 + ... + 661016578785.

It is an arithmetic number, because the mean of its divisors is an integer number (4098302788374).

Almost surely, 2^{21152530520624} is an apocalyptic number.

It is an amenable number.

21152530520624 is a deficient number, since it is larger than the sum of its proper divisors (19830497363116).

21152530520624 is a wasteful number, since it uses less digits than its factorization.

21152530520624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322033157547 (or 1322033157541 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 21152530520624 in words is "twenty-one trillion, one hundred fifty-two billion, five hundred thirty million, five hundred twenty thousand, six hundred twenty-four".