15575040000 has 675 divisors, whose sum is σ = 60881053233. Its totient is φ = 3833856000.

The previous prime is 15575039981. The next prime is 15575040001. The reversal of 15575040000 is 4057551.

The square root of 15575040000 is 124800.

It is a perfect power (a square), and thus also a powerful number.

15575040000 is a `hidden beast` number, since 155 + 7 + 504 + 0 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 15383937024 + 191102976 = 124032^2 + 13824^2 .

It is not an unprimeable number, because it can be changed into a prime (15575040001) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1198079994 + ... + 1198080006.

Almost surely, 2^15575040000 is an apocalyptic number.

15575040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15575040000 is the 124800-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15575040000

15575040000 is an abundant number, since it is smaller than the sum of its proper divisors (45306013233).

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

15575040000 is an frugal number, since it uses more digits than its factorization.

15575040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

Adding to 15575040000 its reverse (4057551), we get a palindrome (15579097551).

The spelling of 15575040000 in words is "fifteen billion, five hundred seventy-five million, forty thousand".