83940203735020 has 24 divisors (see below), whose sum is σ = 176274605430000. Its totient is φ = 33576047668032.

The previous prime is 83940203734957. The next prime is 83940203735027. The reversal of 83940203735020 is 2053730204938.

It is not an unprimeable number, because it can be changed into a prime (83940203735027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30523906 + ... + 33160054.

It is an arithmetic number, because the mean of its divisors is an integer number (7344775226250).

Almost surely, 2^{83940203735020} is an apocalyptic number.

It is an amenable number.

83940203735020 is an abundant number, since it is smaller than the sum of its proper divisors (92334401694980).

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

83940203735020 is a wasteful number, since it uses less digits than its factorization.

83940203735020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228257 (or 4228255 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

Adding to 83940203735020 its reverse (2053730204938), we get a palindrome (85993933939958).

The spelling of 83940203735020 in words is "eighty-three trillion, nine hundred forty billion, two hundred three million, seven hundred thirty-five thousand, twenty".