100016556 has 12 divisors (see below), whose sum is σ = 233371992. Its totient is φ = 33338848.

The previous prime is 100016537. The next prime is 100016561. The reversal of 100016556 is 655610001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×100016556² = 20006622948202272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4167345 + ... + 4167368.

It is an arithmetic number, because the mean of its divisors is an integer number (19447666).

Almost surely, 2^100016556 is an apocalyptic number.

It is an amenable number.

100016556 is an abundant number, since it is smaller than the sum of its proper divisors (133355436).

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

100016556 is a wasteful number, since it uses less digits than its factorization.

100016556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334720 (or 8334718 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 100016556 is about 10000.8277657402. The cubic root of 100016556 is about 464.1844973294.

Adding to 100016556 its reverse (655610001), we get a palindrome (755626557).

It can be divided in two parts, 10001 and 6556, that multiplied together give a palindrome (65566556).

The spelling of 100016556 in words is "one hundred million, sixteen thousand, five hundred fifty-six".