66197479030 has 32 divisors (see below), whose sum is σ = 121900826880. Its totient is φ = 25874287200.

The previous prime is 66197479009. The next prime is 66197479031. The reversal of 66197479030 is 3097479166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66197479031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237396 + ... + 434455.

It is an arithmetic number, because the mean of its divisors is an integer number (3809400840).

Almost surely, 2^66197479030 is an apocalyptic number.

66197479030 is a deficient number, since it is larger than the sum of its proper divisors (55703347850).

66197479030 is a wasteful number, since it uses less digits than its factorization.

66197479030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672084.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 66197479030 in words is "sixty-six billion, one hundred ninety-seven million, four hundred seventy-nine thousand, thirty".