15012051340 has 144 divisors (see below), whose sum is σ = 37427183136. Its totient is φ = 5024194560.

The previous prime is 15012051319. The next prime is 15012051343. The reversal of 15012051340 is 4315021051.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (15012051343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18152007 + ... + 18152833.

It is an arithmetic number, because the mean of its divisors is an integer number (259910994).

Almost surely, 2^15012051340 is an apocalyptic number.

15012051340 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 15012051340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18713591568).

15012051340 is an abundant number, since it is smaller than the sum of its proper divisors (22415131796).

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

15012051340 is a wasteful number, since it uses less digits than its factorization.

15012051340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 15012051340 its reverse (4315021051), we get a palindrome (19327072391).

The spelling of 15012051340 in words is "fifteen billion, twelve million, fifty-one thousand, three hundred forty".