100621551032244 has 144 divisors (see below), whose sum is σ = 280558836282816. Its totient is φ = 30152625408000.

The previous prime is 100621551032243. The next prime is 100621551032311. The reversal of 100621551032244 is 442230155126001.

100621551032244 is a `hidden beast` number, since 1 + 0 + 0 + 62 + 1 + 551 + 0 + 3 + 2 + 2 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 100621551032199 and 100621551032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100621551032243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46456819 + ... + 48574469.

It is an arithmetic number, because the mean of its divisors is an integer number (1948325251964).

Almost surely, 2^{100621551032244} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100621551032244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140279418141408).

100621551032244 is an abundant number, since it is smaller than the sum of its proper divisors (179937285250572).

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

100621551032244 is a wasteful number, since it uses less digits than its factorization.

100621551032244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119006 (or 2119001 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 100621551032244 in words is "one hundred trillion, six hundred twenty-one billion, five hundred fifty-one million, thirty-two thousand, two hundred forty-four".