645148841546 has 8 divisors (see below), whose sum is σ = 1055698104384. Its totient is φ = 293249473420.

The previous prime is 645148841521. The next prime is 645148841551.

645148841546 is nontrivially palindromic in base 10.

645148841546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 645148841491 and 645148841500.

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, 14662473650 + ... + 14662473693.

It is an arithmetic number, because the mean of its divisors is an integer number (131962263048).

Almost surely, 2^645148841546 is an apocalyptic number.

645148841546 is a deficient number, since it is larger than the sum of its proper divisors (410549262838).

645148841546 is a wasteful number, since it uses less digits than its factorization.

645148841546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29324947356.

The product of its digits is 14745600, while the sum is 56.

The spelling of 645148841546 in words is "six hundred forty-five billion, one hundred forty-eight million, eight hundred forty-one thousand, five hundred forty-six".