20345016655532 has 12 divisors (see below), whose sum is σ = 35603816757936. Its totient is φ = 10172497581840.

The previous prime is 20345016655531. The next prime is 20345016655559. The reversal of 20345016655532 is 23555661054302.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20345016655531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2833718 + ... + 6979970.

It is an arithmetic number, because the mean of its divisors is an integer number (2966984729828).

Almost surely, 2^{20345016655532} is an apocalyptic number.

It is an amenable number.

20345016655532 is a deficient number, since it is larger than the sum of its proper divisors (15258800102404).

20345016655532 is a wasteful number, since it uses less digits than its factorization.

20345016655532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372968 (or 5372966 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 20345016655532 in words is "twenty trillion, three hundred forty-five billion, sixteen million, six hundred fifty-five thousand, five hundred thirty-two".