1650640712 has 16 divisors (see below), whose sum is σ = 3537087360. Its totient is φ = 707417424.

The previous prime is 1650640709. The next prime is 1650640727. The reversal of 1650640712 is 2170460561.

It is a super-2 number, since 2×1650640712² = 5449229520223733888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14737808 + ... + 14737919.

It is an arithmetic number, because the mean of its divisors is an integer number (221067960).

Almost surely, 2^1650640712 is an apocalyptic number.

It is an amenable number.

1650640712 is an abundant number, since it is smaller than the sum of its proper divisors (1886446648).

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

1650640712 is a wasteful number, since it uses less digits than its factorization.

1650640712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29475740 (or 29475736 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1650640712 is about 40628.0778772513. The cubic root of 1650640712 is about 1181.8186816695.

The spelling of 1650640712 in words is "one billion, six hundred fifty million, six hundred forty thousand, seven hundred twelve".