1668840053628 has 48 divisors (see below), whose sum is σ = 4248032060160. Its totient is φ = 505700112000.

The previous prime is 1668840053603. The next prime is 1668840053729. The reversal of 1668840053628 is 8263500488661.

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, 14764528 + ... + 14877128.

It is an arithmetic number, because the mean of its divisors is an integer number (88500667920).

Almost surely, 2^{1668840053628} is an apocalyptic number.

It is an amenable number.

1668840053628 is an abundant number, since it is smaller than the sum of its proper divisors (2579192006532).

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

1668840053628 is a wasteful number, since it uses less digits than its factorization.

1668840053628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224898 (or 224896 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 1668840053628 in words is "one trillion, six hundred sixty-eight billion, eight hundred forty million, fifty-three thousand, six hundred twenty-eight".