665682647273062 has 32 divisors (see below), whose sum is σ = 1045320097941504. Its totient is φ = 317571735110400.

The previous prime is 665682647273047. The next prime is 665682647273081. The reversal of 665682647273062 is 260372746286566.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 665682647272982 and 665682647273000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208853364 + ... + 212016727.

It is an arithmetic number, because the mean of its divisors is an integer number (32666253060672).

Almost surely, 2^{665682647273062} is an apocalyptic number.

665682647273062 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

665682647273062 is a deficient number, since it is larger than the sum of its proper divisors (379637450668442).

665682647273062 is a wasteful number, since it uses less digits than its factorization.

665682647273062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420870484.

The product of its (nonzero) digits is 1463132160, while the sum is 70.

The spelling of 665682647273062 in words is "six hundred sixty-five trillion, six hundred eighty-two billion, six hundred forty-seven million, two hundred seventy-three thousand, sixty-two".