66089833797 has 64 divisors (see below), whose sum is σ = 98770681856. Its totient is φ = 39047339520.

The previous prime is 66089833787. The next prime is 66089833837. The reversal of 66089833797 is 79733898066.

It is a happy number.

66089833797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66089833797 - 2⁴ = 66089833781 is a prime.

It is a super-2 number, since 2×66089833797² (a number of 22 digits) contains 22 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 (66089833727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44927772 + ... + 44929242.

It is an arithmetic number, because the mean of its divisors is an integer number (1543291904).

Almost surely, 2^66089833797 is an apocalyptic number.

It is an amenable number.

66089833797 is a deficient number, since it is larger than the sum of its proper divisors (32680848059).

66089833797 is a wasteful number, since it uses less digits than its factorization.

66089833797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 82301184, while the sum is 66.

The spelling of 66089833797 in words is "sixty-six billion, eighty-nine million, eight hundred thirty-three thousand, seven hundred ninety-seven".