1616652040 has 16 divisors (see below), whose sum is σ = 3637467180. Its totient is φ = 646660800.

The previous prime is 1616652001. The next prime is 1616652041. The reversal of 1616652040 is 402566161.

It can be written as a sum of positive squares in 2 ways, for example, as 1480556484 + 136095556 = 38478^2 + 11666^2 .

It is a super-2 number, since 2×1616652040² = 5227127636872323200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616651993 and 1616652011.

It is not an unprimeable number, because it can be changed into a prime (1616652041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20208111 + ... + 20208190.

Almost surely, 2^1616652040 is an apocalyptic number.

1616652040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616652040 is an abundant number, since it is smaller than the sum of its proper divisors (2020815140).

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

1616652040 is a wasteful number, since it uses less digits than its factorization.

1616652040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40416312 (or 40416308 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1616652040 is about 40207.6117171861. The cubic root of 1616652040 is about 1173.6506713825.

The spelling of 1616652040 in words is "one billion, six hundred sixteen million, six hundred fifty-two thousand, forty".