2016155600 has 30 divisors (see below), whose sum is σ = 4843814790. Its totient is φ = 806462080.

The previous prime is 2016155599. The next prime is 2016155621. The reversal of 2016155600 is 65516102.

It can be written as a sum of positive squares in 3 ways, for example, as 170250304 + 1845905296 = 13048^2 + 42964^2 .

It is a super-2 number, since 2×2016155600² = 8129766806822720000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2016155600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2519795 + ... + 2520594.

It is an arithmetic number, because the mean of its divisors is an integer number (161460493).

Almost surely, 2^2016155600 is an apocalyptic number.

2016155600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016155600 is an abundant number, since it is smaller than the sum of its proper divisors (2827659190).

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

2016155600 is a wasteful number, since it uses less digits than its factorization.

2016155600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040407 (or 5040396 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2016155600 is about 44901.6213515726. The cubic root of 2016155600 is about 1263.3044195402.

The spelling of 2016155600 in words is "two billion, sixteen million, one hundred fifty-five thousand, six hundred".