66839014 has 16 divisors (see below), whose sum is σ = 110504016. Its totient is φ = 30067200.

The previous prime is 66838973. The next prime is 66839023. The reversal of 66839014 is 41093866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13527 + ... + 17794.

It is an arithmetic number, because the mean of its divisors is an integer number (6906501).

Almost surely, 2^66839014 is an apocalyptic number.

66839014 is a deficient number, since it is larger than the sum of its proper divisors (43665002).

66839014 is a wasteful number, since it uses less digits than its factorization.

66839014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31431.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 66839014 is about 8175.5130725845. The cubic root of 66839014 is about 405.8292494627.

The spelling of 66839014 in words is "sixty-six million, eight hundred thirty-nine thousand, fourteen".