1616606650 has 12 divisors (see below), whose sum is σ = 3006888462. Its totient is φ = 646642640.

The previous prime is 1616606647. The next prime is 1616606669. The reversal of 1616606650 is 566066161.

It can be written as a sum of positive squares in 3 ways, for example, as 644601321 + 972005329 = 25389^2 + 31177^2 .

It is a super-2 number, since 2×1616606650² = 5226834121648445000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16166017 + ... + 16166116.

Almost surely, 2^1616606650 is an apocalyptic number.

1616606650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1616606650 is a deficient number, since it is larger than the sum of its proper divisors (1390281812).

1616606650 is a wasteful number, since it uses less digits than its factorization.

1616606650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32332145 (or 32332140 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1616606650 is about 40207.0472678609. The cubic root of 1616606650 is about 1173.6396872620.

The spelling of 1616606650 in words is "one billion, six hundred sixteen million, six hundred six thousand, six hundred fifty".