39660339012 has 96 divisors (see below), whose sum is σ = 108007087104. Its totient is φ = 11092636800.

The previous prime is 39660339007. The next prime is 39660339029. The reversal of 39660339012 is 21093306693.

It is a super-2 number, since 2×39660339012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 1062823 + ... + 1099505.

It is an arithmetic number, because the mean of its divisors is an integer number (1125073824).

Almost surely, 2^39660339012 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 39660339012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54003543552).

39660339012 is an abundant number, since it is smaller than the sum of its proper divisors (68346748092).

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

39660339012 is a wasteful number, since it uses less digits than its factorization.

39660339012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36969 (or 36967 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 42.

The spelling of 39660339012 in words is "thirty-nine billion, six hundred sixty million, three hundred thirty-nine thousand, twelve".