420523341055555 has 16 divisors (see below), whose sum is σ = 534314467422720. Its totient is φ = 316627882785792.

The previous prime is 420523341055553. The next prime is 420523341055577. The reversal of 420523341055555 is 555550143325024.

It is a cyclic number.

It is not a de Polignac number, because 420523341055555 - 2¹ = 420523341055553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420523341055499 and 420523341055508.

It is not an unprimeable number, because it can be changed into a prime (420523341055553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7391902 + ... + 29928028.

It is an arithmetic number, because the mean of its divisors is an integer number (33394654213920).

Almost surely, 2^{420523341055555} is an apocalyptic number.

420523341055555 is a deficient number, since it is larger than the sum of its proper divisors (113791126367165).

420523341055555 is a wasteful number, since it uses less digits than its factorization.

420523341055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755678.

The product of its (nonzero) digits is 9000000, while the sum is 49.

The spelling of 420523341055555 in words is "four hundred twenty trillion, five hundred twenty-three billion, three hundred forty-one million, fifty-five thousand, five hundred fifty-five".