662662063661640 has 256 divisors, whose sum is σ = 2320452571852800. Its totient is φ = 148267875216384.

The previous prime is 662662063661573. The next prime is 662662063661677. The reversal of 662662063661640 is 46166360266266.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35999692 + ... + 51198651.

It is an arithmetic number, because the mean of its divisors is an integer number (9064267858800).

Almost surely, 2^{662662063661640} is an apocalyptic number.

662662063661640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662662063661640 is an abundant number, since it is smaller than the sum of its proper divisors (1657790508191160).

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

662662063661640 is a wasteful number, since it uses less digits than its factorization.

662662063661640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87198556 (or 87198552 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 60.

The spelling of 662662063661640 in words is "six hundred sixty-two trillion, six hundred sixty-two billion, sixty-three million, six hundred sixty-one thousand, six hundred forty".