402001250066 has 32 divisors (see below), whose sum is σ = 650368992000. Its totient is φ = 185258586240.

The previous prime is 402001250041. The next prime is 402001250081. The reversal of 402001250066 is 660052100204.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73772510 + ... + 73777958.

It is an arithmetic number, because the mean of its divisors is an integer number (20324031000).

Almost surely, 2^402001250066 is an apocalyptic number.

402001250066 is a deficient number, since it is larger than the sum of its proper divisors (248367741934).

402001250066 is a wasteful number, since it uses less digits than its factorization.

402001250066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 402001250066 in words is "four hundred two billion, one million, two hundred fifty thousand, sixty-six".