1620600106 has 16 divisors (see below), whose sum is σ = 2578209480. Its totient is φ = 761356800.

The previous prime is 1620600067. The next prime is 1620600131. The reversal of 1620600106 is 6010060261.

It can be written as a sum of positive squares in 4 ways, for example, as 1571726025 + 48874081 = 39645^2 + 6991^2 .

It is a super-2 number, since 2×1620600106² = 5252689407134422472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19221 + ... + 60088.

Almost surely, 2^1620600106 is an apocalyptic number.

1620600106 is a deficient number, since it is larger than the sum of its proper divisors (957609374).

1620600106 is a wasteful number, since it uses less digits than its factorization.

1620600106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79929.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1620600106 is about 40256.6777814563. The cubic root of 1620600106 is about 1174.6052951610.

Adding to 1620600106 its reverse (6010060261), we get a palindrome (7630660367).

The spelling of 1620600106 in words is "one billion, six hundred twenty million, six hundred thousand, one hundred six".