662617209660 has 48 divisors (see below), whose sum is σ = 2120375072256. Its totient is φ = 151455362112.

The previous prime is 662617209647. The next prime is 662617209697. The reversal of 662617209660 is 66902716266.

It is a happy number.

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, 788829592 + ... + 788830431.

It is an arithmetic number, because the mean of its divisors is an integer number (44174480672).

Almost surely, 2^662617209660 is an apocalyptic number.

662617209660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662617209660 is an abundant number, since it is smaller than the sum of its proper divisors (1457757862596).

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

662617209660 is a wasteful number, since it uses less digits than its factorization.

662617209660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577660042 (or 1577660040 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 662617209660 in words is "six hundred sixty-two billion, six hundred seventeen million, two hundred nine thousand, six hundred sixty".