10155221503 has 8 divisors (see below), whose sum is σ = 11607203840. Its totient is φ = 8703548280.

The previous prime is 10155221477. The next prime is 10155221513. The reversal of 10155221503 is 30512255101.

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

It is not a de Polignac number, because 10155221503 - 2⁵ = 10155221471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10155221513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983 + ... + 142528.

It is an arithmetic number, because the mean of its divisors is an integer number (1450900480).

Almost surely, 2^10155221503 is an apocalyptic number.

10155221503 is a deficient number, since it is larger than the sum of its proper divisors (1451982337).

10155221503 is a wasteful number, since it uses less digits than its factorization.

10155221503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154557.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 10155221503 its reverse (30512255101), we get a palindrome (40667476604).

The spelling of 10155221503 in words is "ten billion, one hundred fifty-five million, two hundred twenty-one thousand, five hundred three".