420156444355 has 8 divisors (see below), whose sum is σ = 516484995264. Its totient is φ = 327926980800.

The previous prime is 420156444341. The next prime is 420156444361. The reversal of 420156444355 is 553444651024.

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

It is not a de Polignac number, because 420156444355 - 2¹³ = 420156436163 is a prime.

It is a super-2 number, since 2×420156444355² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 1024771611 + ... + 1024772020.

It is an arithmetic number, because the mean of its divisors is an integer number (64560624408).

Almost surely, 2^420156444355 is an apocalyptic number.

420156444355 is a deficient number, since it is larger than the sum of its proper divisors (96328550909).

420156444355 is a wasteful number, since it uses less digits than its factorization.

420156444355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049543677.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 420156444355 in words is "four hundred twenty billion, one hundred fifty-six million, four hundred forty-four thousand, three hundred fifty-five".