420455064651 has 16 divisors (see below), whose sum is σ = 590189932800. Its totient is φ = 265515664608.

The previous prime is 420455064641. The next prime is 420455064697. The reversal of 420455064651 is 156460554024.

It is not a de Polignac number, because 420455064651 - 2¹⁰ = 420455063627 is a prime.

It is a super-2 number, since 2×420455064651² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420455064641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43791 + ... + 918056.

It is an arithmetic number, because the mean of its divisors is an integer number (36886870800).

Almost surely, 2^420455064651 is an apocalyptic number.

420455064651 is a deficient number, since it is larger than the sum of its proper divisors (169734868149).

420455064651 is a wasteful number, since it uses less digits than its factorization.

420455064651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969538.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 420455064651 in words is "four hundred twenty billion, four hundred fifty-five million, sixty-four thousand, six hundred fifty-one".