645415002046 has 32 divisors (see below), whose sum is σ = 1034471894400. Its totient is φ = 301126494240.

The previous prime is 645415002031. The next prime is 645415002047. The reversal of 645415002046 is 640200514546.

It is a super-2 number, since 2×645415002046² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 645415001996 and 645415002014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645415002047) 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, 734860 + ... + 1353088.

It is an arithmetic number, because the mean of its divisors is an integer number (32327246700).

Almost surely, 2^645415002046 is an apocalyptic number.

645415002046 is a deficient number, since it is larger than the sum of its proper divisors (389056892354).

645415002046 is a wasteful number, since it uses less digits than its factorization.

645415002046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618664.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 645415002046 in words is "six hundred forty-five billion, four hundred fifteen million, two thousand, forty-six".