402341660556 has 96 divisors (see below), whose sum is σ = 1061029428480. Its totient is φ = 117542880000.

The previous prime is 402341660531. The next prime is 402341660557. The reversal of 402341660556 is 655066143204.

It is not an unprimeable number, because it can be changed into a prime (402341660557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2513931 + ... + 2669181.

It is an arithmetic number, because the mean of its divisors is an integer number (11052389880).

Almost surely, 2^402341660556 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 402341660556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530514714240).

402341660556 is an abundant number, since it is smaller than the sum of its proper divisors (658687767924).

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

402341660556 is a wasteful number, since it uses less digits than its factorization.

402341660556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155975 (or 155973 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 402341660556 in words is "four hundred two billion, three hundred forty-one million, six hundred sixty thousand, five hundred fifty-six".