420436015556 has 12 divisors (see below), whose sum is σ = 735780061968. Its totient is φ = 210213140712.

The previous prime is 420436015553. The next prime is 420436015607. The reversal of 420436015556 is 655510634024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420436015553) 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, 1018826 + ... + 1370721.

It is an arithmetic number, because the mean of its divisors is an integer number (61315005164).

Almost surely, 2^420436015556 is an apocalyptic number.

It is an amenable number.

420436015556 is a deficient number, since it is larger than the sum of its proper divisors (315344046412).

420436015556 is a wasteful number, since it uses less digits than its factorization.

420436015556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433538 (or 2433536 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 420436015556 in words is "four hundred twenty billion, four hundred thirty-six million, fifteen thousand, five hundred fifty-six".