420352005161 has 8 divisors (see below), whose sum is σ = 469230145824. Its totient is φ = 373251251520.

The previous prime is 420352005067. The next prime is 420352005169. The reversal of 420352005161 is 161500253024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420352005161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420352005169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444346256 + ... + 444347201.

It is an arithmetic number, because the mean of its divisors is an integer number (58653768228).

Almost surely, 2^420352005161 is an apocalyptic number.

It is an amenable number.

420352005161 is a deficient number, since it is larger than the sum of its proper divisors (48878140663).

420352005161 is a wasteful number, since it uses less digits than its factorization.

420352005161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888693511.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 420352005161 its reverse (161500253024), we get a palindrome (581852258185).

The spelling of 420352005161 in words is "four hundred twenty billion, three hundred fifty-two million, five thousand, one hundred sixty-one".