646096047601 has 9 divisors (see below), whose sum is σ = 648190271001. Its totient is φ = 644008576404.

The previous prime is 646096047587. The next prime is 646096047613. The reversal of 646096047601 is 106740690646.

The square root of 646096047601 is 803801.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 646096047601 - 2⁹ = 646096047089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646096347601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 288563440 + ... + 288565678.

Almost surely, 2^646096047601 is an apocalyptic number.

646096047601 is the 803801-st square number.

646096047601 is the 401901-st centered octagonal number.

It is an amenable number.

646096047601 is a deficient number, since it is larger than the sum of its proper divisors (2094223400).

646096047601 is an frugal number, since it uses more digits than its factorization.

646096047601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

Multiplying 646096047601 by its sum of digits (49), we get a square (31658706332449 = 5626607²).

The spelling of 646096047601 in words is "six hundred forty-six billion, ninety-six million, forty-seven thousand, six hundred one".