996952689520 has 20 divisors (see below), whose sum is σ = 2317915003320. Its totient is φ = 398781075776.

The previous prime is 996952689503. The next prime is 996952689527. The reversal of 996952689520 is 25986259699.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 996952689520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996952689527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230954230 + ... + 6230954389.

It is an arithmetic number, because the mean of its divisors is an integer number (115895750166).

Almost surely, 2^996952689520 is an apocalyptic number.

It is an amenable number.

996952689520 is an abundant number, since it is smaller than the sum of its proper divisors (1320962313800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

996952689520 is a wasteful number, since it uses less digits than its factorization.

996952689520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12461908632 (or 12461908626 counting only the distinct ones).

The product of its (nonzero) digits is 188956800, while the sum is 70.

The spelling of 996952689520 in words is "nine hundred ninety-six billion, nine hundred fifty-two million, six hundred eighty-nine thousand, five hundred twenty".