420640106612 has 24 divisors (see below), whose sum is σ = 803267284512. Its totient is φ = 191145981600.

The previous prime is 420640106591. The next prime is 420640106699. The reversal of 420640106612 is 216601046024.

It is a super-2 number, since 2×420640106612² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1194098 + ... + 1505705.

It is an arithmetic number, because the mean of its divisors is an integer number (33469470188).

Almost surely, 2^420640106612 is an apocalyptic number.

It is an amenable number.

420640106612 is a deficient number, since it is larger than the sum of its proper divisors (382627177900).

420640106612 is a wasteful number, since it uses less digits than its factorization.

420640106612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703359 (or 2703357 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 420640106612 in words is "four hundred twenty billion, six hundred forty million, one hundred six thousand, six hundred twelve".