420541542540554 has 8 divisors (see below), whose sum is σ = 630812404071108. Its totient is φ = 210270741183520.

The previous prime is 420541542540527. The next prime is 420541542540577. The reversal of 420541542540554 is 455045245145024.

It can be written as a sum of positive squares in 2 ways, for example, as 397391347094329 + 23150195446225 = 19934677^2 + 4811465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12554924 + ... + 31602360.

Almost surely, 2^{420541542540554} is an apocalyptic number.

420541542540554 is a deficient number, since it is larger than the sum of its proper divisors (210270861530554).

420541542540554 is a wasteful number, since it uses less digits than its factorization.

420541542540554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30086760.

The product of its (nonzero) digits is 12800000, while the sum is 50.

Adding to 420541542540554 its reverse (455045245145024), we get a palindrome (875586787685578).

The spelling of 420541542540554 in words is "four hundred twenty trillion, five hundred forty-one billion, five hundred forty-two million, five hundred forty thousand, five hundred fifty-four".