20452354640010 has 48 divisors (see below), whose sum is σ = 53190344956320. Its totient is φ = 5452502479200.

The previous prime is 20452354639999. The next prime is 20452354640023. The reversal of 20452354640010 is 1004645325402.

20452354640010 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 2 + 3 + 5 + 4 + 640 + 0 + 1 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30052416 + ... + 30725435.

It is an arithmetic number, because the mean of its divisors is an integer number (1108132186590).

Almost surely, 2^{20452354640010} is an apocalyptic number.

20452354640010 is an abundant number, since it is smaller than the sum of its proper divisors (32737990316310).

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

20452354640010 is a wasteful number, since it uses less digits than its factorization.

20452354640010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60781603 (or 60781600 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 20452354640010 its reverse (1004645325402), we get a palindrome (21456999965412).

The spelling of 20452354640010 in words is "twenty trillion, four hundred fifty-two billion, three hundred fifty-four million, six hundred forty thousand, ten".