100411661 has 16 divisors (see below), whose sum is σ = 116490240. Its totient is φ = 84777840.

The previous prime is 100411651. The next prime is 100411681. The reversal of 100411661 is 166114001.

It is not a de Polignac number, because 100411661 - 2²² = 96217357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100411621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158816 + ... + 159446.

It is an arithmetic number, because the mean of its divisors is an integer number (7280640).

Almost surely, 2^100411661 is an apocalyptic number.

It is an amenable number.

100411661 is a deficient number, since it is larger than the sum of its proper divisors (16078579).

100411661 is a wasteful number, since it uses less digits than its factorization.

100411661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 100411661 is about 10020.5619103921. The cubic root of 100411661 is about 464.7949317373.

Adding to 100411661 its reverse (166114001), we get a palindrome (266525662).

The spelling of 100411661 in words is "one hundred million, four hundred eleven thousand, six hundred sixty-one".