66773070 has 192 divisors, whose sum is σ = 221405184. Its totient is φ = 13582080.

The previous prime is 66773033. The next prime is 66773089. The reversal of 66773070 is 7037766.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 253759 + ... + 254021.

It is an arithmetic number, because the mean of its divisors is an integer number (1153152).

Almost surely, 2^66773070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66773070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110702592).

66773070 is an abundant number, since it is smaller than the sum of its proper divisors (154632114).

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

66773070 is a wasteful number, since it uses less digits than its factorization.

66773070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The square root of 66773070 is about 8171.4790582856. The cubic root of 66773070 is about 405.6957405609.

It can be divided in two parts, 667 and 73070, that added together give a palindrome (73737).

The spelling of 66773070 in words is "sixty-six million, seven hundred seventy-three thousand, seventy".