11709022520 has 32 divisors (see below), whose sum is σ = 28371863520. Its totient is φ = 4323331200.

The previous prime is 11709022511. The next prime is 11709022541. The reversal of 11709022520 is 2522090711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11258156 + ... + 11259195.

It is an arithmetic number, because the mean of its divisors is an integer number (886620735).

Almost surely, 2^11709022520 is an apocalyptic number.

11709022520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11709022520 is an abundant number, since it is smaller than the sum of its proper divisors (16662841000).

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

11709022520 is a wasteful number, since it uses less digits than its factorization.

11709022520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22517375 (or 22517371 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 11709022520 in words is "eleven billion, seven hundred nine million, twenty-two thousand, five hundred twenty".