403061446656 has 576 divisors, whose sum is σ = 1326992284800. Its totient is φ = 120783421440.

The previous prime is 403061446649. The next prime is 403061446661. The reversal of 403061446656 is 656644160304.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 715917031 + ... + 715917593.

It is an arithmetic number, because the mean of its divisors is an integer number (2303806050).

Almost surely, 2^403061446656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403061446656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663496142400).

403061446656 is an abundant number, since it is smaller than the sum of its proper divisors (923930838144).

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

403061446656 is a wasteful number, since it uses less digits than its factorization.

403061446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 403061446656 in words is "four hundred three billion, sixty-one million, four hundred forty-six thousand, six hundred fifty-six".