20354822620 has 24 divisors (see below), whose sum is σ = 46631048688. Its totient is φ = 7401753600.

The previous prime is 20354822603. The next prime is 20354822623. The reversal of 20354822620 is 2622845302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354822623) 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, 46260741 + ... + 46261180.

It is an arithmetic number, because the mean of its divisors is an integer number (1942960362).

Almost surely, 2^20354822620 is an apocalyptic number.

20354822620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20354822620 is an abundant number, since it is smaller than the sum of its proper divisors (26276226068).

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

20354822620 is a wasteful number, since it uses less digits than its factorization.

20354822620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92521941 (or 92521939 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 20354822620 in words is "twenty billion, three hundred fifty-four million, eight hundred twenty-two thousand, six hundred twenty".