420663530507 has 16 divisors (see below), whose sum is σ = 474761196000. Its totient is φ = 369210186240.

The previous prime is 420663530489. The next prime is 420663530513. The reversal of 420663530507 is 705035366024.

It is a cyclic number.

It is not a de Polignac number, because 420663530507 - 2²⁸ = 420395095051 is a prime.

It is a super-2 number, since 2×420663530507² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420663530107) 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, 6249869 + ... + 6316817.

It is an arithmetic number, because the mean of its divisors is an integer number (29672574750).

Almost surely, 2^420663530507 is an apocalyptic number.

420663530507 is a deficient number, since it is larger than the sum of its proper divisors (54097665493).

420663530507 is a wasteful number, since it uses less digits than its factorization.

420663530507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86686.

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 420663530507 in words is "four hundred twenty billion, six hundred sixty-three million, five hundred thirty thousand, five hundred seven".