20345032403064 has 80 divisors (see below), whose sum is σ = 56985686406000. Its totient is φ = 6781587297408.

The previous prime is 20345032403039. The next prime is 20345032403089. The reversal of 20345032403064 is 46030423054302.

20345032403064 is a `hidden beast` number, since 2 + 0 + 345 + 0 + 3 + 2 + 4 + 0 + 306 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (20345032403039) and next prime (20345032403089).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63608212 + ... + 63927260.

It is an arithmetic number, because the mean of its divisors is an integer number (712321080075).

Almost surely, 2^{20345032403064} is an apocalyptic number.

20345032403064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20345032403064 is an abundant number, since it is smaller than the sum of its proper divisors (36640654002936).

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

20345032403064 is a wasteful number, since it uses less digits than its factorization.

20345032403064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417474 (or 417461 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 20345032403064 its reverse (46030423054302), we get a palindrome (66375455457366).

The spelling of 20345032403064 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred three thousand, sixty-four".