420915767560 has 16 divisors (see below), whose sum is σ = 947060477100. Its totient is φ = 168366307008.

The previous prime is 420915767537. The next prime is 420915767617. The reversal of 420915767560 is 65767519024.

It can be written as a sum of positive squares in 2 ways, for example, as 346847967844 + 74067799716 = 588938^2 + 272154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 420915767498 and 420915767507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261447055 + ... + 5261447134.

Almost surely, 2^420915767560 is an apocalyptic number.

420915767560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420915767560 is an abundant number, since it is smaller than the sum of its proper divisors (526144709540).

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

420915767560 is a wasteful number, since it uses less digits than its factorization.

420915767560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522894200 (or 10522894196 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 420915767560 in words is "four hundred twenty billion, nine hundred fifteen million, seven hundred sixty-seven thousand, five hundred sixty".