420066557948019 has 4 divisors (see below), whose sum is σ = 560088743930696. Its totient is φ = 280044371965344.

The previous prime is 420066557948017. The next prime is 420066557948039. The reversal of 420066557948019 is 910849755660024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 420066557948019 - 2¹ = 420066557948017 is a prime.

It is a super-2 number, since 2×420066557948019² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420066557948017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70011092991334 + ... + 70011092991339.

It is an arithmetic number, because the mean of its divisors is an integer number (140022185982674).

Almost surely, 2^{420066557948019} is an apocalyptic number.

420066557948019 is a deficient number, since it is larger than the sum of its proper divisors (140022185982677).

420066557948019 is a wasteful number, since it uses less digits than its factorization.

420066557948019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140022185982676.

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 420066557948019 in words is "four hundred twenty trillion, sixty-six billion, five hundred fifty-seven million, nine hundred forty-eight thousand, nineteen".