66770343 has 6 divisors (see below), whose sum is σ = 96446064. Its totient is φ = 44513556.

The previous prime is 66770329. The next prime is 66770369. The reversal of 66770343 is 34307766.

It is not a de Polignac number, because 66770343 - 2⁶ = 66770279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66770298 and 66770307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66770323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3709455 + ... + 3709472.

It is an arithmetic number, because the mean of its divisors is an integer number (16074344).

Almost surely, 2^66770343 is an apocalyptic number.

66770343 is a deficient number, since it is larger than the sum of its proper divisors (29675721).

66770343 is a wasteful number, since it uses less digits than its factorization.

66770343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418933 (or 7418930 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 66770343 is about 8171.3121957247. The cubic root of 66770343 is about 405.6902176390.

The spelling of 66770343 in words is "sixty-six million, seven hundred seventy thousand, three hundred forty-three".