65997346629 has 16 divisors (see below), whose sum is σ = 89123742720. Its totient is φ = 43434758640.

The previous prime is 65997346607. The next prime is 65997346631. The reversal of 65997346629 is 92664379956.

It is not a de Polignac number, because 65997346629 - 2⁹ = 65997346117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65997346629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65997346829) 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, 1948174 + ... + 1981760.

It is an arithmetic number, because the mean of its divisors is an integer number (5570233920).

Almost surely, 2^65997346629 is an apocalyptic number.

It is an amenable number.

65997346629 is a deficient number, since it is larger than the sum of its proper divisors (23126396091).

65997346629 is a wasteful number, since it uses less digits than its factorization.

65997346629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41960.

The product of its digits is 132269760, while the sum is 66.

The spelling of 65997346629 in words is "sixty-five billion, nine hundred ninety-seven million, three hundred forty-six thousand, six hundred twenty-nine".