1648270664 has 32 divisors (see below), whose sum is σ = 3118435200. Its totient is φ = 816720960.

The previous prime is 1648270661. The next prime is 1648270667. The reversal of 1648270664 is 4660728461.

It is an interprime number because it is at equal distance from previous prime (1648270661) and next prime (1648270667).

It is not an unprimeable number, because it can be changed into a prime (1648270661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452129 + ... + 455759.

It is an arithmetic number, because the mean of its divisors is an integer number (97451100).

Almost surely, 2^1648270664 is an apocalyptic number.

It is an amenable number.

1648270664 is a deficient number, since it is larger than the sum of its proper divisors (1470164536).

1648270664 is a wasteful number, since it uses less digits than its factorization.

1648270664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 1648270664 is about 40598.8997880484. The cubic root of 1648270664 is about 1181.2527784562.

The spelling of 1648270664 in words is "one billion, six hundred forty-eight million, two hundred seventy thousand, six hundred sixty-four".