415551220101 has 6 divisors (see below), whose sum is σ = 600240651270. Its totient is φ = 277034146728.

The previous prime is 415551220099. The next prime is 415551220159. The reversal of 415551220101 is 101022155514.

It is a happy number.

415551220101 is a `hidden beast` number, since 4 + 1 + 5 + 551 + 2 + 2 + 0 + 101 = 666.

It can be written as a sum of positive squares in only one way, i.e., 415212696900 + 338523201 = 644370^2 + 18399^2 .

It is not a de Polignac number, because 415551220101 - 2¹ = 415551220099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415551220001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23086178886 + ... + 23086178903.

It is an arithmetic number, because the mean of its divisors is an integer number (100040108545).

Almost surely, 2^415551220101 is an apocalyptic number.

It is an amenable number.

415551220101 is a deficient number, since it is larger than the sum of its proper divisors (184689431169).

415551220101 is a wasteful number, since it uses less digits than its factorization.

415551220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46172357795 (or 46172357792 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 415551220101 its reverse (101022155514), we get a palindrome (516573375615).

The spelling of 415551220101 in words is "four hundred fifteen billion, five hundred fifty-one million, two hundred twenty thousand, one hundred one".