66968862 has 16 divisors (see below), whose sum is σ = 134061312. Its totient is φ = 22302360.

The previous prime is 66968861. The next prime is 66968929. The reversal of 66968862 is 26886966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66968861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2853 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (8378832).

Almost surely, 2^66968862 is an apocalyptic number.

66968862 is an abundant number, since it is smaller than the sum of its proper divisors (67092450).

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

66968862 is a wasteful number, since it uses less digits than its factorization.

66968862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303.

The product of its digits is 1492992, while the sum is 51.

The square root of 66968862 is about 8183.4504947485. The cubic root of 66968862 is about 406.0918806507.

The spelling of 66968862 in words is "sixty-six million, nine hundred sixty-eight thousand, eight hundred sixty-two".