420661353142 has 32 divisors (see below), whose sum is σ = 676716768000. Its totient is φ = 195538484448.

The previous prime is 420661353103. The next prime is 420661353149. The reversal of 420661353142 is 241353166024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420661353149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22383 + ... + 917509.

It is an arithmetic number, because the mean of its divisors is an integer number (21147399000).

Almost surely, 2^420661353142 is an apocalyptic number.

420661353142 is a deficient number, since it is larger than the sum of its proper divisors (256055414858).

420661353142 is a wasteful number, since it uses less digits than its factorization.

420661353142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895380.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 420661353142 in words is "four hundred twenty billion, six hundred sixty-one million, three hundred fifty-three thousand, one hundred forty-two".