68620266 has 96 divisors (see below), whose sum is σ = 178319232. Its totient is φ = 18794880.

The previous prime is 68620249. The next prime is 68620271. The reversal of 68620266 is 66202686.

68620266 is a `hidden beast` number, since 6 + 8 + 620 + 26 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68620266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136171 + ... + 136673.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^68620266 is an apocalyptic number.

68620266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68620266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89159616).

68620266 is an abundant number, since it is smaller than the sum of its proper divisors (109698966).

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

68620266 is a wasteful number, since it uses less digits than its factorization.

68620266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68620266 is about 8283.7350271481. The cubic root of 68620266 is about 409.4027910430.

It can be divided in two parts, 68620 and 266, that added together give a palindrome (68886).

The spelling of 68620266 in words is "sixty-eight million, six hundred twenty thousand, two hundred sixty-six".