68214666 has 16 divisors (see below), whose sum is σ = 146924064. Its totient is φ = 20989104.

The previous prime is 68214661. The next prime is 68214689. The reversal of 68214666 is 66641286.

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

It is not an unprimeable number, because it can be changed into a prime (68214661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437196 + ... + 437351.

It is an arithmetic number, because the mean of its divisors is an integer number (9182754).

Almost surely, 2^68214666 is an apocalyptic number.

68214666 is an abundant number, since it is smaller than the sum of its proper divisors (78709398).

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

68214666 is a wasteful number, since it uses less digits than its factorization.

68214666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874565.

The product of its digits is 82944, while the sum is 39.

The square root of 68214666 is about 8259.2170331091. The cubic root of 68214666 is about 408.5945651839.

The spelling of 68214666 in words is "sixty-eight million, two hundred fourteen thousand, six hundred sixty-six".