66604523126 has 8 divisors (see below), whose sum is σ = 103351846320. Its totient is φ = 32153907688.

The previous prime is 66604523087. The next prime is 66604523131. The reversal of 66604523126 is 62132540666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×66604523126³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574176866 + ... + 574176981.

It is an arithmetic number, because the mean of its divisors is an integer number (12918980790).

Almost surely, 2^66604523126 is an apocalyptic number.

66604523126 is a deficient number, since it is larger than the sum of its proper divisors (36747323194).

66604523126 is a wasteful number, since it uses less digits than its factorization.

66604523126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148353878.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 66604523126 in words is "sixty-six billion, six hundred four million, five hundred twenty-three thousand, one hundred twenty-six".