39656916648 has 96 divisors (see below), whose sum is σ = 109800437760. Its totient is φ = 12924616320.

The previous prime is 39656916643. The next prime is 39656916659. The reversal of 39656916648 is 84661965693.

39656916648 is a `hidden beast` number, since 3 + 9 + 6 + 569 + 1 + 6 + 64 + 8 = 666.

39656916648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39656916643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3673018 + ... + 3683798.

It is an arithmetic number, because the mean of its divisors is an integer number (1143754560).

Almost surely, 2^39656916648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39656916648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54900218880).

39656916648 is an abundant number, since it is smaller than the sum of its proper divisors (70143521112).

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

39656916648 is a wasteful number, since it uses less digits than its factorization.

39656916648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11927 (or 11920 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 39656916648 in words is "thirty-nine billion, six hundred fifty-six million, nine hundred sixteen thousand, six hundred forty-eight".