402020401566002 has 8 divisors (see below), whose sum is σ = 629249324190336. Its totient is φ = 192270626835892.

The previous prime is 402020401565977. The next prime is 402020401566031. The reversal of 402020401566002 is 200665104020204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 402020401566002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4369786973498 + ... + 4369786973589.

It is an arithmetic number, because the mean of its divisors is an integer number (78656165523792).

Almost surely, 2^{402020401566002} is an apocalyptic number.

402020401566002 is a deficient number, since it is larger than the sum of its proper divisors (227228922624334).

402020401566002 is a wasteful number, since it uses less digits than its factorization.

402020401566002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739573947112.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 402020401566002 its reverse (200665104020204), we get a palindrome (602685505586206).

The spelling of 402020401566002 in words is "four hundred two trillion, twenty billion, four hundred one million, five hundred sixty-six thousand, two".