20345032403116 has 24 divisors (see below), whose sum is σ = 37699965835056. Its totient is φ = 9573671293440.

The previous prime is 20345032403089. The next prime is 20345032403231. The reversal of 20345032403116 is 61130423054302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789721 + ... + 8614576.

It is an arithmetic number, because the mean of its divisors is an integer number (1570831909794).

Almost surely, 2^{20345032403116} is an apocalyptic number.

It is an amenable number.

20345032403116 is a deficient number, since it is larger than the sum of its proper divisors (17354933431940).

20345032403116 is a wasteful number, since it uses less digits than its factorization.

20345032403116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14425089 (or 14425087 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 20345032403116 its reverse (61130423054302), we get a palindrome (81475455457418).

The spelling of 20345032403116 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred three thousand, one hundred sixteen".