420156330032 has 20 divisors (see below), whose sum is σ = 814648435056. Its totient is φ = 209924475840.

The previous prime is 420156330023. The next prime is 420156330037. The reversal of 420156330032 is 230033651024.

It is a junction number, because it is equal to n+sod(n) for n = 420156329977 and 420156330004.

It is not an unprimeable number, because it can be changed into a prime (420156330037) 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, 9583019 + ... + 9626762.

Almost surely, 2^420156330032 is an apocalyptic number.

It is an amenable number.

420156330032 is a deficient number, since it is larger than the sum of its proper divisors (394492105024).

420156330032 is a wasteful number, since it uses less digits than its factorization.

420156330032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19211156 (or 19211150 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 420156330032 its reverse (230033651024), we get a palindrome (650189981056).

The spelling of 420156330032 in words is "four hundred twenty billion, one hundred fifty-six million, three hundred thirty thousand, thirty-two".