421355010155 has 16 divisors (see below), whose sum is σ = 510304354560. Its totient is φ = 333965593728.

The previous prime is 421355010149. The next prime is 421355010187. The reversal of 421355010155 is 551010553124.

It is a cyclic number.

It is not a de Polignac number, because 421355010155 - 2³⁰ = 420281268331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10210694 + ... + 10251876.

It is an arithmetic number, because the mean of its divisors is an integer number (31894022160).

Almost surely, 2^421355010155 is an apocalyptic number.

421355010155 is a deficient number, since it is larger than the sum of its proper divisors (88949344405).

421355010155 is a wasteful number, since it uses less digits than its factorization.

421355010155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60070.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 421355010155 its reverse (551010553124), we get a palindrome (972365563279).

The spelling of 421355010155 in words is "four hundred twenty-one billion, three hundred fifty-five million, ten thousand, one hundred fifty-five".