66351629 has 8 divisors (see below), whose sum is σ = 73952640. Its totient is φ = 59161536.

The previous prime is 66351569. The next prime is 66351683. The reversal of 66351629 is 92615366.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66351629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66351592 and 66351601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66351689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102389 + ... + 103034.

It is an arithmetic number, because the mean of its divisors is an integer number (9244080).

Almost surely, 2^66351629 is an apocalyptic number.

It is an amenable number.

66351629 is a deficient number, since it is larger than the sum of its proper divisors (7601011).

66351629 is a wasteful number, since it uses less digits than its factorization.

66351629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205459.

The product of its digits is 58320, while the sum is 38.

The square root of 66351629 is about 8145.6509254939. The cubic root of 66351629 is about 404.8404167289.

The spelling of 66351629 in words is "sixty-six million, three hundred fifty-one thousand, six hundred twenty-nine".