1651335516 has 144 divisors (see below), whose sum is σ = 4468988160. Its totient is φ = 513192960.

The previous prime is 1651335479. The next prime is 1651335527. The reversal of 1651335516 is 6155331561.

1651335516 is a `hidden beast` number, since 1 + 6 + 5 + 133 + 5 + 516 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7404981 + ... + 7405203.

It is an arithmetic number, because the mean of its divisors is an integer number (31034640).

Almost surely, 2^1651335516 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 1651335516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2234494080).

1651335516 is an abundant number, since it is smaller than the sum of its proper divisors (2817652644).

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

1651335516 is a wasteful number, since it uses less digits than its factorization.

1651335516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 471 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 1651335516 is about 40636.6277636322. The cubic root of 1651335516 is about 1181.9844793413.

The spelling of 1651335516 in words is "one billion, six hundred fifty-one million, three hundred thirty-five thousand, five hundred sixteen".