1656030241866 has 288 divisors, whose sum is σ = 4742436625920. Its totient is φ = 376149121920.

The previous prime is 1656030241837. The next prime is 1656030241969. The reversal of 1656030241866 is 6681420306561.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16267561 + ... + 16369043.

It is an arithmetic number, because the mean of its divisors is an integer number (16466793840).

Almost surely, 2^{1656030241866} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1656030241866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371218312960).

1656030241866 is an abundant number, since it is smaller than the sum of its proper divisors (3086406384054).

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

1656030241866 is a wasteful number, since it uses less digits than its factorization.

1656030241866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101562 (or 101538 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 1656030241866 in words is "one trillion, six hundred fifty-six billion, thirty million, two hundred forty-one thousand, eight hundred sixty-six".