82668533042120 has 32 divisors (see below), whose sum is σ = 187921768419000. Its totient is φ = 32726512048128.

The previous prime is 82668533042119. The next prime is 82668533042159. The reversal of 82668533042120 is 2124033586628.

It can be written as a sum of positive squares in 4 ways, for example, as 47309882855524 + 35358650186596 = 6878218^2 + 5946314^2 .

It is a super-4 number, since 4×82668533042120⁴ (a number of 57 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10653157595 + ... + 10653165354.

Almost surely, 2^{82668533042120} is an apocalyptic number.

It is an amenable number.

82668533042120 is an abundant number, since it is smaller than the sum of its proper divisors (105253235376880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82668533042120 is a wasteful number, since it uses less digits than its factorization.

82668533042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21306323057 (or 21306323053 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 82668533042120 in words is "eighty-two trillion, six hundred sixty-eight billion, five hundred thirty-three million, forty-two thousand, one hundred twenty".