11670729782520 has 64 divisors (see below), whose sum is σ = 35189916268320. Its totient is φ = 3096396660224.

The previous prime is 11670729782507. The next prime is 11670729782603. The reversal of 11670729782520 is 2528792707611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246819207 + ... + 246866486.

Almost surely, 2^{11670729782520} is an apocalyptic number.

11670729782520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11670729782520 is an abundant number, since it is smaller than the sum of its proper divisors (23519186485800).

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

11670729782520 is a wasteful number, since it uses less digits than its factorization.

11670729782520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493685904 (or 493685900 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 11670729782520 in words is "eleven trillion, six hundred seventy billion, seven hundred twenty-nine million, seven hundred eighty-two thousand, five hundred twenty".