420600217755 has 8 divisors (see below), whose sum is σ = 672960348432. Its totient is φ = 224320116128.

The previous prime is 420600217703. The next prime is 420600217769. The reversal of 420600217755 is 557712006024.

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

It is a cyclic number.

It is not a de Polignac number, because 420600217755 - 2²⁴ = 420583440539 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14020007244 + ... + 14020007273.

It is an arithmetic number, because the mean of its divisors is an integer number (84120043554).

Almost surely, 2^420600217755 is an apocalyptic number.

420600217755 is a deficient number, since it is larger than the sum of its proper divisors (252360130677).

420600217755 is a wasteful number, since it uses less digits than its factorization.

420600217755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28040014525.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 420600217755 in words is "four hundred twenty billion, six hundred million, two hundred seventeen thousand, seven hundred fifty-five".