100616643 has 12 divisors (see below), whose sum is σ = 145676440. Its totient is φ = 66920256.

The previous prime is 100616641. The next prime is 100616657. The reversal of 100616643 is 346616001.

100616643 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 16 + 643 = 666.

It is not a de Polignac number, because 100616643 - 2¹ = 100616641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100616641) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9013 + ... + 16806.

Almost surely, 2^100616643 is an apocalyptic number.

100616643 is a deficient number, since it is larger than the sum of its proper divisors (45059797).

100616643 is a wasteful number, since it uses less digits than its factorization.

100616643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26258 (or 26255 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 100616643 is about 10030.7847649125. The cubic root of 100616643 is about 465.1109967424.

The spelling of 100616643 in words is "one hundred million, six hundred sixteen thousand, six hundred forty-three".