100001655201 has 16 divisors (see below), whose sum is σ = 156100146048. Its totient is φ = 55750051200.

The previous prime is 100001655197. The next prime is 100001655233. The reversal of 100001655201 is 102556100001.

It is not a de Polignac number, because 100001655201 - 2² = 100001655197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (100001655101) 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, 58072110 + ... + 58073831.

It is an arithmetic number, because the mean of its divisors is an integer number (9756259128).

Almost surely, 2^100001655201 is an apocalyptic number.

It is an amenable number.

100001655201 is a deficient number, since it is larger than the sum of its proper divisors (56098490847).

100001655201 is a wasteful number, since it uses less digits than its factorization.

100001655201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116145992.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 100001655201 its reverse (102556100001), we get a palindrome (202557755202).

The spelling of 100001655201 in words is "one hundred billion, one million, six hundred fifty-five thousand, two hundred one".