20350003700 has 144 divisors (see below), whose sum is σ = 49982634240. Its totient is φ = 7140026880.

The previous prime is 20350003651. The next prime is 20350003711. The reversal of 20350003700 is 730005302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2063381 + ... + 2073219.

Almost surely, 2^20350003700 is an apocalyptic number.

20350003700 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 20350003700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24991317120).

20350003700 is an abundant number, since it is smaller than the sum of its proper divisors (29632630540).

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

20350003700 is a wasteful number, since it uses less digits than its factorization.

20350003700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946 (or 9939 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The spelling of 20350003700 in words is "twenty billion, three hundred fifty million, three thousand, seven hundred".