403055408664 has 96 divisors (see below), whose sum is σ = 1106910061920. Its totient is φ = 132469682688.

The previous prime is 403055408653. The next prime is 403055408719. The reversal of 403055408664 is 466804550304.

403055408664 is a `hidden beast` number, since 4 + 0 + 30 + 554 + 0 + 8 + 6 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19789174 + ... + 19809530.

It is an arithmetic number, because the mean of its divisors is an integer number (11530313145).

Almost surely, 2^403055408664 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 403055408664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553455030960).

403055408664 is an abundant number, since it is smaller than the sum of its proper divisors (703854653256).

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

403055408664 is a wasteful number, since it uses less digits than its factorization.

403055408664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24209 (or 24202 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

Adding to 403055408664 its reverse (466804550304), we get a palindrome (869859958968).

The spelling of 403055408664 in words is "four hundred three billion, fifty-five million, four hundred eight thousand, six hundred sixty-four".