15500150001 has 24 divisors (see below), whose sum is σ = 26279108544. Its totient is φ = 8617842720.

The previous prime is 15500149991. The next prime is 15500150077. The reversal of 15500150001 is 10005100551.

15500150001 is a `hidden beast` number, since 15 + 500 + 150 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 15500150001 - 2⁵ = 15500149969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15500150801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3322455 + ... + 3327116.

It is an arithmetic number, because the mean of its divisors is an integer number (1094962856).

Almost surely, 2^15500150001 is an apocalyptic number.

It is an amenable number.

15500150001 is a deficient number, since it is larger than the sum of its proper divisors (10778958543).

15500150001 is a wasteful number, since it uses less digits than its factorization.

15500150001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649621 (or 6649618 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 15500150001 its reverse (10005100551), we get a palindrome (25505250552).

The spelling of 15500150001 in words is "fifteen billion, five hundred million, one hundred fifty thousand, one".