420156444356 has 12 divisors (see below), whose sum is σ = 802116848400. Its totient is φ = 190980201960.

The previous prime is 420156444341. The next prime is 420156444361. The reversal of 420156444356 is 653444651024.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 9549010099 = 420156444356 / (4 + 2 + 0 + 1 + 5 + 6 + 4 + 4 + 4 + 3 + 5 + 6).

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, 4774505006 + ... + 4774505093.

It is an arithmetic number, because the mean of its divisors is an integer number (66843070700).

Almost surely, 2^420156444356 is an apocalyptic number.

It is an amenable number.

420156444356 is a deficient number, since it is larger than the sum of its proper divisors (381960404044).

420156444356 is a wasteful number, since it uses less digits than its factorization.

420156444356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549010114 (or 9549010112 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 420156444356 in words is "four hundred twenty billion, one hundred fifty-six million, four hundred forty-four thousand, three hundred fifty-six".