15023340540 has 480 divisors, whose sum is σ = 52783847424. Its totient is φ = 3553320960.

The previous prime is 15023340533. The next prime is 15023340557. The reversal of 15023340540 is 4504332051.

15023340540 is a `hidden beast` number, since 1 + 50 + 2 + 33 + 40 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 109659352 + ... + 109659488.

Almost surely, 2^15023340540 is an apocalyptic number.

15023340540 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 15023340540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26391923712).

15023340540 is an abundant number, since it is smaller than the sum of its proper divisors (37760506884).

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

15023340540 is a wasteful number, since it uses less digits than its factorization.

15023340540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 15023340540 its reverse (4504332051), we get a palindrome (19527672591).

The spelling of 15023340540 in words is "fifteen billion, twenty-three million, three hundred forty thousand, five hundred forty".