1656244416 has 112 divisors (see below), whose sum is σ = 4539959424. Its totient is φ = 532525056.

The previous prime is 1656244399. The next prime is 1656244423. The reversal of 1656244416 is 6144426561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684040 + ... + 686456.

It is an arithmetic number, because the mean of its divisors is an integer number (40535352).

Almost surely, 2^1656244416 is an apocalyptic number.

1656244416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1656244416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269979712).

1656244416 is an abundant number, since it is smaller than the sum of its proper divisors (2883715008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656244416 is a wasteful number, since it uses less digits than its factorization.

1656244416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2548 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 1656244416 is about 40696.9828857128. The cubic root of 1656244416 is about 1183.1545431305.

The spelling of 1656244416 in words is "one billion, six hundred fifty-six million, two hundred forty-four thousand, four hundred sixteen".