66739206996000 has 1152 divisors, whose sum is σ = 308142335434752. Its totient is φ = 13264922880000.

The previous prime is 66739206995969. The next prime is 66739206996083. The reversal of 66739206996000 is 69960293766.

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 191 ways as a sum of consecutive naturals, for example, 63232605 + ... + 64279395.

It is an arithmetic number, because the mean of its divisors is an integer number (267484666176).

Almost surely, 2^{66739206996000} is an apocalyptic number.

66739206996000 is a gapful number since it is divisible by the number (60) 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 66739206996000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154071167717376).

66739206996000 is an abundant number, since it is smaller than the sum of its proper divisors (241403128438752).

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

66739206996000 is a wasteful number, since it uses less digits than its factorization.

66739206996000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046863 (or 1046842 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 63.

The spelling of 66739206996000 in words is "sixty-six trillion, seven hundred thirty-nine billion, two hundred six million, nine hundred ninety-six thousand".