1651042316 has 96 divisors (see below), whose sum is σ = 3808358400. Its totient is φ = 606761280.

The previous prime is 1651042313. The next prime is 1651042321. The reversal of 1651042316 is 6132401561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1651042313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1796105 + ... + 1797023.

It is an arithmetic number, because the mean of its divisors is an integer number (39670400).

Almost surely, 2^1651042316 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 1651042316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1904179200).

1651042316 is an abundant number, since it is smaller than the sum of its proper divisors (2157316084).

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

1651042316 is a wasteful number, since it uses less digits than its factorization.

1651042316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1651042316 is about 40633.0200206679. The cubic root of 1651042316 is about 1181.9145201358.

Adding to 1651042316 its reverse (6132401561), we get a palindrome (7783443877).

The spelling of 1651042316 in words is "one billion, six hundred fifty-one million, forty-two thousand, three hundred sixteen".