1081503696 has 320 divisors, whose sum is σ = 3644211200. Its totient is φ = 274337280.

The previous prime is 1081503691. The next prime is 1081503697. The reversal of 1081503696 is 6963051801.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081503691) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6634911 + ... + 6635073.

It is an arithmetic number, because the mean of its divisors is an integer number (11388160).

Almost surely, 2^1081503696 is an apocalyptic number.

1081503696 is a gapful number since it is divisible by the number (16) 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 1081503696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822105600).

1081503696 is an abundant number, since it is smaller than the sum of its proper divisors (2562707504).

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

1081503696 is a wasteful number, since it uses less digits than its factorization.

1081503696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1081503696 is about 32886.2234986020. The cubic root of 1081503696 is about 1026.4615108895.

The spelling of 1081503696 in words is "one billion, eighty-one million, five hundred three thousand, six hundred ninety-six".