20452837660 has 36 divisors (see below), whose sum is σ = 45330529608. Its totient is φ = 7750546272.

The previous prime is 20452837637. The next prime is 20452837661. The reversal of 20452837660 is 6673825402.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452837661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1409182 + ... + 1423621.

It is an arithmetic number, because the mean of its divisors is an integer number (1259181378).

Almost surely, 2^20452837660 is an apocalyptic number.

20452837660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20452837660 is an abundant number, since it is smaller than the sum of its proper divisors (24877691948).

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

20452837660 is a wasteful number, since it uses less digits than its factorization.

20452837660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832850 (or 2832829 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20452837660 in words is "twenty billion, four hundred fifty-two million, eight hundred thirty-seven thousand, six hundred sixty".