420264604218465 has 64 divisors (see below), whose sum is σ = 806504787878400. Its totient is φ = 207002895466752.

The previous prime is 420264604218461. The next prime is 420264604218583. The reversal of 420264604218465 is 564812406462024.

420264604218465 is a `hidden beast` number, since 4 + 2 + 0 + 2 + 6 + 4 + 604 + 21 + 8 + 4 + 6 + 5 = 666.

It is not a de Polignac number, because 420264604218465 - 2² = 420264604218461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420264604218461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2333546494 + ... + 2333726583.

It is an arithmetic number, because the mean of its divisors is an integer number (12601637310600).

Almost surely, 2^{420264604218465} is an apocalyptic number.

420264604218465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420264604218465 is a deficient number, since it is larger than the sum of its proper divisors (386240183659935).

420264604218465 is a wasteful number, since it uses less digits than its factorization.

420264604218465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667273143 (or 4667273137 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 54.

The spelling of 420264604218465 in words is "four hundred twenty trillion, two hundred sixty-four billion, six hundred four million, two hundred eighteen thousand, four hundred sixty-five".