1649463870164 has 24 divisors (see below), whose sum is σ = 3149014373568. Its totient is φ = 749747282240.

The previous prime is 1649463870151. The next prime is 1649463870179. The reversal of 1649463870164 is 4610783649461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662632 + ... + 5003904.

It is an arithmetic number, because the mean of its divisors is an integer number (131208932232).

Almost surely, 2^{1649463870164} is an apocalyptic number.

It is an amenable number.

1649463870164 is a deficient number, since it is larger than the sum of its proper divisors (1499550503404).

1649463870164 is a wasteful number, since it uses less digits than its factorization.

1649463870164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451135 (or 451133 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 1649463870164 in words is "one trillion, six hundred forty-nine billion, four hundred sixty-three million, eight hundred seventy thousand, one hundred sixty-four".