20600640060 has 384 divisors, whose sum is σ = 78553939968. Its totient is φ = 3894912000.

The previous prime is 20600640007. The next prime is 20600640061. The reversal of 20600640060 is 6004600602.

It is a self number, because there is not a number n which added to its sum of digits gives 20600640060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20600640061) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4261845 + ... + 4266675.

It is an arithmetic number, because the mean of its divisors is an integer number (204567552).

Almost surely, 2^20600640060 is an apocalyptic number.

20600640060 is a gapful number since it is divisible by the number (20) 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 20600640060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39276969984).

20600640060 is an abundant number, since it is smaller than the sum of its proper divisors (57953299908).

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

20600640060 is a wasteful number, since it uses less digits than its factorization.

20600640060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945 (or 4943 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The spelling of 20600640060 in words is "twenty billion, six hundred million, six hundred forty thousand, sixty".