20102993152 has 72 divisors (see below), whose sum is σ = 43895063520. Its totient is φ = 9112750080.

The previous prime is 20102993147. The next prime is 20102993159. The reversal of 20102993152 is 25139920102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102993159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040799 + ... + 1059937.

It is an arithmetic number, because the mean of its divisors is an integer number (609653660).

Almost surely, 2^20102993152 is an apocalyptic number.

20102993152 is a gapful number since it is divisible by the number (22) 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 20102993152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21947531760).

20102993152 is an abundant number, since it is smaller than the sum of its proper divisors (23792070368).

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

20102993152 is a wasteful number, since it uses less digits than its factorization.

20102993152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19539 (or 19525 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 20102993152 in words is "twenty billion, one hundred two million, nine hundred ninety-three thousand, one hundred fifty-two".