1071288720396 has 144 divisors (see below), whose sum is σ = 2905981478400. Its totient is φ = 331948108800.

The previous prime is 1071288720371. The next prime is 1071288720409. The reversal of 1071288720396 is 6930278821701.

It is a happy number.

1071288720396 is a `hidden beast` number, since 1 + 0 + 71 + 288 + 7 + 203 + 96 = 666.

1071288720396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1071288720396² (a number of 25 digits) contains 22 as substring.

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, 7009596 + ... + 7160796.

Almost surely, 2^{1071288720396} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071288720396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452990739200).

1071288720396 is an abundant number, since it is smaller than the sum of its proper divisors (1834692758004).

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

1071288720396 is a wasteful number, since it uses less digits than its factorization.

1071288720396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151476 (or 151471 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 1071288720396 in words is "one trillion, seventy-one billion, two hundred eighty-eight million, seven hundred twenty thousand, three hundred ninety-six".