420255146633 has 16 divisors (see below), whose sum is σ = 488500360320. Its totient is φ = 354063830400.

The previous prime is 420255146611. The next prime is 420255146639. The reversal of 420255146633 is 336641552024.

It is not a de Polignac number, because 420255146633 - 2⁶ = 420255146569 is a prime.

It is a super-2 number, since 2×420255146633² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420255146639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3055403 + ... + 3189983.

It is an arithmetic number, because the mean of its divisors is an integer number (30531272520).

Almost surely, 2^420255146633 is an apocalyptic number.

It is an amenable number.

420255146633 is a deficient number, since it is larger than the sum of its proper divisors (68245213687).

420255146633 is a wasteful number, since it uses less digits than its factorization.

420255146633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142208.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 420255146633 its reverse (336641552024), we get a palindrome (756896698657).

The spelling of 420255146633 in words is "four hundred twenty billion, two hundred fifty-five million, one hundred forty-six thousand, six hundred thirty-three".