1683211216 has 40 divisors (see below), whose sum is σ = 3543622400. Its totient is φ = 771586560.

The previous prime is 1683211207. The next prime is 1683211217. The reversal of 1683211216 is 6121123861.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683211217) 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, 79881 + ... + 98728.

It is an arithmetic number, because the mean of its divisors is an integer number (88590560).

Almost surely, 2^1683211216 is an apocalyptic number.

1683211216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1683211216 is an abundant number, since it is smaller than the sum of its proper divisors (1860411184).

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

1683211216 is a wasteful number, since it uses less digits than its factorization.

1683211216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178667 (or 178661 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1683211216 is about 41026.9571867084. The cubic root of 1683211216 is about 1189.5413377284.

The spelling of 1683211216 in words is "one billion, six hundred eighty-three million, two hundred eleven thousand, two hundred sixteen".