268730292666 has 64 divisors (see below), whose sum is σ = 618144307200. Its totient is φ = 77026867200.

The previous prime is 268730292659. The next prime is 268730292673. The reversal of 268730292666 is 666292037862.

268730292666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (268730292659) and next prime (268730292673).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636655 + ... + 970973.

It is an arithmetic number, because the mean of its divisors is an integer number (9658504800).

Almost surely, 2^268730292666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268730292666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309072153600).

268730292666 is an abundant number, since it is smaller than the sum of its proper divisors (349414014534).

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

268730292666 is a wasteful number, since it uses less digits than its factorization.

268730292666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334995.

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 268730292666 in words is "two hundred sixty-eight billion, seven hundred thirty million, two hundred ninety-two thousand, six hundred sixty-six".