645106056002 has 8 divisors (see below), whose sum is σ = 988247575296. Its totient is φ = 315690197572.

The previous prime is 645106055983. The next prime is 645106056011. The reversal of 645106056002 is 200650601546.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431415098 + ... + 3431415285.

It is an arithmetic number, because the mean of its divisors is an integer number (123530946912).

Almost surely, 2^645106056002 is an apocalyptic number.

645106056002 is a deficient number, since it is larger than the sum of its proper divisors (343141519294).

645106056002 is a wasteful number, since it uses less digits than its factorization.

645106056002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862830432.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 645106056002 its reverse (200650601546), we get a palindrome (845756657548).

The spelling of 645106056002 in words is "six hundred forty-five billion, one hundred six million, fifty-six thousand, two".