82662766485651 has 64 divisors (see below), whose sum is σ = 135433986071040. Its totient is φ = 49409624056320.

The previous prime is 82662766485623. The next prime is 82662766485667. The reversal of 82662766485651 is 15658466726628.

82662766485651 is a `hidden beast` number, since 8 + 2 + 6 + 6 + 27 + 66 + 485 + 65 + 1 = 666.

It is not a de Polignac number, because 82662766485651 - 2²⁷ = 82662632267923 is a prime.

It is a super-2 number, since 2×82662766485651² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82662766485651.

It is not an unprimeable number, because it can be changed into a prime (82662766485671) 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, 431638020 + ... + 431829486.

It is an arithmetic number, because the mean of its divisors is an integer number (2116156032360).

Almost surely, 2^{82662766485651} is an apocalyptic number.

82662766485651 is a deficient number, since it is larger than the sum of its proper divisors (52771219585389).

82662766485651 is a wasteful number, since it uses less digits than its factorization.

82662766485651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211473 (or 211467 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 72.

The spelling of 82662766485651 in words is "eighty-two trillion, six hundred sixty-two billion, seven hundred sixty-six million, four hundred eighty-five thousand, six hundred fifty-one".