420155551024 has 20 divisors (see below), whose sum is σ = 888056051400. Its totient is φ = 190979795840.

The previous prime is 420155551003. The next prime is 420155551033.

420155551024 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193623549 + ... + 1193623900.

It is an arithmetic number, because the mean of its divisors is an integer number (44402802570).

Almost surely, 2^420155551024 is an apocalyptic number.

420155551024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420155551024 is an abundant number, since it is smaller than the sum of its proper divisors (467900500376).

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

420155551024 is a wasteful number, since it uses less digits than its factorization.

420155551024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387247468 (or 2387247462 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

It can be divided in two parts, 420155 and 551024, that added together give a palindrome (971179).

The spelling of 420155551024 in words is "four hundred twenty billion, one hundred fifty-five million, five hundred fifty-one thousand, twenty-four".