420655657007 has 16 divisors (see below), whose sum is σ = 448359537600. Its totient is φ = 393902288640.

The previous prime is 420655656991. The next prime is 420655657043. The reversal of 420655657007 is 700756556024.

It is a cyclic number.

It is not a de Polignac number, because 420655657007 - 2⁴ = 420655656991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420655659007) 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, 296582 + ... + 963987.

It is an arithmetic number, because the mean of its divisors is an integer number (28022471100).

Almost surely, 2^420655657007 is an apocalyptic number.

420655657007 is a deficient number, since it is larger than the sum of its proper divisors (27703880593).

420655657007 is a wasteful number, since it uses less digits than its factorization.

420655657007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260946.

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 420655657007 in words is "four hundred twenty billion, six hundred fifty-five million, six hundred fifty-seven thousand, seven".