420155540405532 has 96 divisors (see below), whose sum is σ = 1174589729510400. Its totient is φ = 129444582384000.

The previous prime is 420155540405519. The next prime is 420155540405597. The reversal of 420155540405532 is 235504045551024.

420155540405532 is a `hidden beast` number, since 4 + 2 + 0 + 1 + 5 + 5 + 54 + 0 + 40 + 553 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2496917844 + ... + 2497086107.

It is an arithmetic number, because the mean of its divisors is an integer number (12235309682400).

Almost surely, 2^{420155540405532} is an apocalyptic number.

It is an amenable number.

420155540405532 is an abundant number, since it is smaller than the sum of its proper divisors (754434189104868).

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

420155540405532 is a wasteful number, since it uses less digits than its factorization.

420155540405532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994004024 (or 4994004016 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

Adding to 420155540405532 its reverse (235504045551024), we get a palindrome (655659585956556).

The spelling of 420155540405532 in words is "four hundred twenty trillion, one hundred fifty-five billion, five hundred forty million, four hundred five thousand, five hundred thirty-two".