39899055168 has 560 divisors, whose sum is σ = 145310352000. Its totient is φ = 10790599680.

The previous prime is 39899055151. The next prime is 39899055193. The reversal of 39899055168 is 86155099893.

39899055168 is a `hidden beast` number, since 39 + 89 + 9 + 0 + 5 + 516 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 33783538 + ... + 33784718.

Almost surely, 2^39899055168 is an apocalyptic number.

39899055168 is a gapful number since it is divisible by the number (38) 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 39899055168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72655176000).

39899055168 is an abundant number, since it is smaller than the sum of its proper divisors (105411296832).

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

39899055168 is a wasteful number, since it uses less digits than its factorization.

39899055168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 39899055168 in words is "thirty-nine billion, eight hundred ninety-nine million, fifty-five thousand, one hundred sixty-eight".