1011660312 has 64 divisors (see below), whose sum is σ = 2787079680. Its totient is φ = 304036992.

The previous prime is 1011660277. The next prime is 1011660319. The reversal of 1011660312 is 2130661101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011660319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24288 + ... + 51119.

It is an arithmetic number, because the mean of its divisors is an integer number (43548120).

Almost surely, 2^1011660312 is an apocalyptic number.

1011660312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011660312 is an abundant number, since it is smaller than the sum of its proper divisors (1775419368).

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

1011660312 is a wasteful number, since it uses less digits than its factorization.

1011660312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75472 (or 75468 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1011660312 is about 31806.6079926798. The cubic root of 1011660312 is about 1003.8717607885.

The spelling of 1011660312 in words is "one billion, eleven million, six hundred sixty thousand, three hundred twelve".