1031712660 has 288 divisors, whose sum is σ = 3725850240. Its totient is φ = 235008000.

The previous prime is 1031712641. The next prime is 1031712683. The reversal of 1031712660 is 662171301.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 95 ways as a sum of consecutive naturals, for example, 1716360 + ... + 1716960.

It is an arithmetic number, because the mean of its divisors is an integer number (12936980).

Almost surely, 2^1031712660 is an apocalyptic number.

1031712660 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 1031712660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862925120).

1031712660 is an abundant number, since it is smaller than the sum of its proper divisors (2694137580).

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

1031712660 is a wasteful number, since it uses less digits than its factorization.

1031712660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1031712660 is about 32120.2842453176. The cubic root of 1031712660 is about 1010.4610710600.

Adding to 1031712660 its reverse (662171301), we get a palindrome (1693883961).

The spelling of 1031712660 in words is "one billion, thirty-one million, seven hundred twelve thousand, six hundred sixty".