402663166000 has 160 divisors (see below), whose sum is σ = 989326054080. Its totient is φ = 158476032000.

The previous prime is 402663165967. The next prime is 402663166001. The reversal of 402663166000 is 661366204.

It is not an unprimeable number, because it can be changed into a prime (402663166001) 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, 198452986 + ... + 198455014.

It is an arithmetic number, because the mean of its divisors is an integer number (6183287838).

Almost surely, 2^402663166000 is an apocalyptic number.

402663166000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402663166000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494663027040).

402663166000 is an abundant number, since it is smaller than the sum of its proper divisors (586662888080).

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

402663166000 is a wasteful number, since it uses less digits than its factorization.

402663166000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600 (or 3584 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 402663166000 in words is "four hundred two billion, six hundred sixty-three million, one hundred sixty-six thousand".