420655556024 has 32 divisors (see below), whose sum is σ = 911045458800. Its totient is φ = 179959595520.

The previous prime is 420655556003. The next prime is 420655556129.

420655556024 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140591939 + ... + 140594930.

Almost surely, 2^420655556024 is an apocalyptic number.

420655556024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420655556024 is an abundant number, since it is smaller than the sum of its proper divisors (490389902776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420655556024 is a wasteful number, since it uses less digits than its factorization.

420655556024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281186903 (or 281186899 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

It can be divided in two parts, 420655 and 556024, that added together give a palindrome (976679).

The spelling of 420655556024 in words is "four hundred twenty billion, six hundred fifty-five million, five hundred fifty-six thousand, twenty-four".