20453306352 has 40 divisors (see below), whose sum is σ = 55618642560. Its totient is φ = 6458938560.

The previous prime is 20453306351. The next prime is 20453306381. The reversal of 20453306352 is 25360335402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453306351) 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, 11212524 + ... + 11214347.

It is an arithmetic number, because the mean of its divisors is an integer number (1390466064).

Almost surely, 2^20453306352 is an apocalyptic number.

It is an amenable number.

20453306352 is an abundant number, since it is smaller than the sum of its proper divisors (35165336208).

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

20453306352 is a wasteful number, since it uses less digits than its factorization.

20453306352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22426901 (or 22426895 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 20453306352 in words is "twenty billion, four hundred fifty-three million, three hundred six thousand, three hundred fifty-two".