420065651 has 8 divisors (see below), whose sum is σ = 429780384. Its totient is φ = 410417280.

The previous prime is 420065647. The next prime is 420065669. The reversal of 420065651 is 156560024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420065651 - 2² = 420065647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420065641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 29216.

It is an arithmetic number, because the mean of its divisors is an integer number (53722548).

Almost surely, 2^420065651 is an apocalyptic number.

420065651 is a deficient number, since it is larger than the sum of its proper divisors (9714733).

420065651 is a wasteful number, since it uses less digits than its factorization.

420065651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33181.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 420065651 is about 20495.5031897243. The cubic root of 420065651 is about 748.9262566858.

The spelling of 420065651 in words is "four hundred twenty million, sixty-five thousand, six hundred fifty-one".