15960690720 has 288 divisors, whose sum is σ = 62107102512. Its totient is φ = 3697606656.

The previous prime is 15960690719. The next prime is 15960690749. The reversal of 15960690720 is 2709606951.

It is a happy number.

15960690720 is a `hidden beast` number, since 15 + 9 + 606 + 9 + 0 + 7 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 6308807184 + 9651883536 = 79428^2 + 98244^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293164 + ... + 343316.

Almost surely, 2^15960690720 is an apocalyptic number.

15960690720 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 15960690720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31053551256).

15960690720 is an abundant number, since it is smaller than the sum of its proper divisors (46146411792).

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

15960690720 is a wasteful number, since it uses less digits than its factorization.

15960690720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50204 (or 50193 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 15960690720 in words is "fifteen billion, nine hundred sixty million, six hundred ninety thousand, seven hundred twenty".