100215420455 has 8 divisors (see below), whose sum is σ = 120338102304. Its totient is φ = 80119271200.

The previous prime is 100215420397. The next prime is 100215420463. The reversal of 100215420455 is 554024512001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100215420455 - 2⁶ = 100215420391 is a prime.

It is a Duffinian number.

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, 6624836 + ... + 6639945.

It is an arithmetic number, because the mean of its divisors is an integer number (15042262788).

Almost surely, 2^100215420455 is an apocalyptic number.

100215420455 is a deficient number, since it is larger than the sum of its proper divisors (20122681849).

100215420455 is a wasteful number, since it uses less digits than its factorization.

100215420455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266297.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 100215420455 its reverse (554024512001), we get a palindrome (654239932456).

The spelling of 100215420455 in words is "one hundred billion, two hundred fifteen million, four hundred twenty thousand, four hundred fifty-five".