66606630429 has 16 divisors (see below), whose sum is σ = 89048698880. Its totient is φ = 44284650480.

The previous prime is 66606630427. The next prime is 66606630443. The reversal of 66606630429 is 92403660666.

It is not a de Polignac number, because 66606630429 - 2¹ = 66606630427 is a prime.

It is a super-3 number, since 3×66606630429³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66606630427) 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, 1720524 + ... + 1758810.

It is an arithmetic number, because the mean of its divisors is an integer number (5565543680).

Almost surely, 2^66606630429 is an apocalyptic number.

It is an amenable number.

66606630429 is a deficient number, since it is larger than the sum of its proper divisors (22442068451).

66606630429 is a wasteful number, since it uses less digits than its factorization.

66606630429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39840.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The spelling of 66606630429 in words is "sixty-six billion, six hundred six million, six hundred thirty thousand, four hundred twenty-nine".