39966696000 has 1568 divisors, whose sum is σ = 187095018240. Its totient is φ = 8211456000.

The previous prime is 39966695917. The next prime is 39966696013. The reversal of 39966696000 is 69666993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 449063956 + ... + 449064044.

Almost surely, 2^39966696000 is an apocalyptic number.

39966696000 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 39966696000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93547509120).

39966696000 is an abundant number, since it is smaller than the sum of its proper divisors (147128322240).

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

39966696000 is an equidigital number, since it uses as much as digits as its factorization.

39966696000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The spelling of 39966696000 in words is "thirty-nine billion, nine hundred sixty-six million, six hundred ninety-six thousand".