15155422140 has 96 divisors (see below), whose sum is σ = 45329336640. Its totient is φ = 3770023936.

The previous prime is 15155422109. The next prime is 15155422151. The reversal of 15155422140 is 4122455151.

It is a super-3 number, since 3×15155422140³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15155422098 and 15155422107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49516 + ... + 181004.

It is an arithmetic number, because the mean of its divisors is an integer number (472180590).

Almost surely, 2^15155422140 is an apocalyptic number.

15155422140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15155422140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22664668320).

15155422140 is an abundant number, since it is smaller than the sum of its proper divisors (30173914500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15155422140 is a wasteful number, since it uses less digits than its factorization.

15155422140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131631 (or 131629 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 15155422140 its reverse (4122455151), we get a palindrome (19277877291).

The spelling of 15155422140 in words is "fifteen billion, one hundred fifty-five million, four hundred twenty-two thousand, one hundred forty".