39985560120 has 128 divisors (see below), whose sum is σ = 130960800000. Its totient is φ = 9686138880.

The previous prime is 39985560103. The next prime is 39985560133. The reversal of 39985560120 is 2106558993.

It is a happy number.

39985560120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39985560120² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39985560120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1849131 + ... + 1870629.

It is an arithmetic number, because the mean of its divisors is an integer number (1023131250).

Almost surely, 2^39985560120 is an apocalyptic number.

39985560120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39985560120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65480400000).

39985560120 is an abundant number, since it is smaller than the sum of its proper divisors (90975239880).

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

39985560120 is a wasteful number, since it uses less digits than its factorization.

39985560120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22933 (or 22929 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 39985560120 in words is "thirty-nine billion, nine hundred eighty-five million, five hundred sixty thousand, one hundred twenty".