67066662 has 32 divisors (see below), whose sum is σ = 146089440. Its totient is φ = 20401920.

The previous prime is 67066639. The next prime is 67066663. The reversal of 67066662 is 26666076.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 67066662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67066663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2112 + ... + 11772.

It is an arithmetic number, because the mean of its divisors is an integer number (4565295).

Almost surely, 2^67066662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67066662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73044720).

67066662 is an abundant number, since it is smaller than the sum of its proper divisors (79022778).

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

67066662 is a wasteful number, since it uses less digits than its factorization.

67066662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9768.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 67066662 is about 8189.4237892540. The cubic root of 67066662 is about 406.2894673451.

The spelling of 67066662 in words is "sixty-seven million, sixty-six thousand, six hundred sixty-two".