2016491520 has 192 divisors, whose sum is σ = 6612671520. Its totient is φ = 524288000.

The previous prime is 2016491513. The next prime is 2016491531. The reversal of 2016491520 is 251946102.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258720 + ... + 1260320.

Almost surely, 2^2016491520 is an apocalyptic number.

2016491520 is a gapful number since it is divisible by the number (20) 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 2016491520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3306335760).

2016491520 is an abundant number, since it is smaller than the sum of its proper divisors (4596180000).

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

2016491520 is a wasteful number, since it uses less digits than its factorization.

2016491520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2016491520 is about 44905.3618179388. The cubic root of 2016491520 is about 1263.3745770971.

The spelling of 2016491520 in words is "two billion, sixteen million, four hundred ninety-one thousand, five hundred twenty".