1682228656640 has 80 divisors (see below), whose sum is σ = 4609606966272. Its totient is φ = 576764104704.

The previous prime is 1682228656627. The next prime is 1682228656711. The reversal of 1682228656640 is 466568222861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 46919264 + ... + 46955103.

Almost surely, 2^{1682228656640} is an apocalyptic number.

1682228656640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1682228656640 is an abundant number, since it is smaller than the sum of its proper divisors (2927378309632).

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

1682228656640 is an frugal number, since it uses more digits than its factorization.

1682228656640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93874397 (or 93874381 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 1682228656640 in words is "one trillion, six hundred eighty-two billion, two hundred twenty-eight million, six hundred fifty-six thousand, six hundred forty".