20070166064 has 80 divisors (see below), whose sum is σ = 42913753344. Its totient is φ = 9034502400.

The previous prime is 20070166063. The next prime is 20070166073. The reversal of 20070166064 is 46066107002.

It is a self number, because there is not a number n which added to its sum of digits gives 20070166064.

It is not an unprimeable number, because it can be changed into a prime (20070166063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8683469 + ... + 8685779.

Almost surely, 2^20070166064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20070166064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21456876672).

20070166064 is an abundant number, since it is smaller than the sum of its proper divisors (22843587280).

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

20070166064 is a wasteful number, since it uses less digits than its factorization.

20070166064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 3340 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20070166064 in words is "twenty billion, seventy million, one hundred sixty-six thousand, sixty-four".