1616849520 has 160 divisors (see below), whose sum is σ = 5888623104. Its totient is φ = 361804800.

The previous prime is 1616849519. The next prime is 1616849527. The reversal of 1616849520 is 259486161.

It is a super-2 number, since 2×1616849520² = 5228404740648460800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616849527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10765 + ... + 57875.

Almost surely, 2^1616849520 is an apocalyptic number.

1616849520 is a gapful number since it is divisible by the number (10) 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 1616849520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2944311552).

1616849520 is an abundant number, since it is smaller than the sum of its proper divisors (4271773584).

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

1616849520 is a wasteful number, since it uses less digits than its factorization.

1616849520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47151 (or 47145 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1616849520 is about 40210.0673961136. The cubic root of 1616849520 is about 1173.6984580206.

The spelling of 1616849520 in words is "one billion, six hundred sixteen million, eight hundred forty-nine thousand, five hundred twenty".