12061692720 has 640 divisors, whose sum is σ = 52933754880. Its totient is φ = 2451409920.

The previous prime is 12061692719. The next prime is 12061692733. The reversal of 12061692720 is 2729616021.

12061692720 is a `hidden beast` number, since 12 + 0 + 616 + 9 + 2 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7816269 + ... + 7817811.

It is an arithmetic number, because the mean of its divisors is an integer number (82708992).

Almost surely, 2^12061692720 is an apocalyptic number.

12061692720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12061692720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26466877440).

12061692720 is an abundant number, since it is smaller than the sum of its proper divisors (40872062160).

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

12061692720 is a wasteful number, since it uses less digits than its factorization.

12061692720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 12061692720 in words is "twelve billion, sixty-one million, six hundred ninety-two thousand, seven hundred twenty".