1612863616 has 192 divisors, whose sum is σ = 4082823360. Its totient is φ = 628992000.

The previous prime is 1612863587. The next prime is 1612863653. The reversal of 1612863616 is 6163682161.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10681141 + ... + 10681291.

It is an arithmetic number, because the mean of its divisors is an integer number (21264705).

Almost surely, 2^1612863616 is an apocalyptic number.

1612863616 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 1612863616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2041411680).

1612863616 is an abundant number, since it is smaller than the sum of its proper divisors (2469959744).

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

1612863616 is a wasteful number, since it uses less digits than its factorization.

1612863616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 304 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 1612863616 is about 40160.4733039839. The cubic root of 1612863616 is about 1172.7331859668.

The spelling of 1612863616 in words is "one billion, six hundred twelve million, eight hundred sixty-three thousand, six hundred sixteen".