66719082 has 32 divisors (see below), whose sum is σ = 138600000. Its totient is φ = 21385728.

The previous prime is 66719057. The next prime is 66719083. The reversal of 66719082 is 28091766.

It is a self number, because there is not a number n which added to its sum of digits gives 66719082.

It is not an unprimeable number, because it can be changed into a prime (66719083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52794 + ... + 54042.

It is an arithmetic number, because the mean of its divisors is an integer number (4331250).

Almost surely, 2^66719082 is an apocalyptic number.

66719082 is an abundant number, since it is smaller than the sum of its proper divisors (71880918).

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

66719082 is a wasteful number, since it uses less digits than its factorization.

66719082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 66719082 is about 8168.1749491548. The cubic root of 66719082 is about 405.5863720820.

It can be divided in two parts, 6671 and 9082, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 66719082 in words is "sixty-six million, seven hundred nineteen thousand, eighty-two".