100661044 has 24 divisors (see below), whose sum is σ = 194082336. Its totient is φ = 45300000.

The previous prime is 100661039. The next prime is 100661051. The reversal of 100661044 is 440166001.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 6882 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (8086764).

Almost surely, 2^100661044 is an apocalyptic number.

It is an amenable number.

100661044 is a deficient number, since it is larger than the sum of its proper divisors (93421292).

100661044 is a wasteful number, since it uses less digits than its factorization.

100661044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22767 (or 22765 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 100661044 is about 10032.9977574003. The cubic root of 100661044 is about 465.1794027759.

The spelling of 100661044 in words is "one hundred million, six hundred sixty-one thousand, forty-four".