1650813696 has 432 divisors, whose sum is σ = 5999745024. Its totient is φ = 441925632.

The previous prime is 1650813683. The next prime is 1650813701. The reversal of 1650813696 is 6963180561.

1650813696 is a `hidden beast` number, since 1 + 6 + 508 + 136 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

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, 7402641 + ... + 7402863.

Almost surely, 2^1650813696 is an apocalyptic number.

1650813696 is a gapful number since it is divisible by the number (16) 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 1650813696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2999872512).

1650813696 is an abundant number, since it is smaller than the sum of its proper divisors (4348931328).

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

1650813696 is an equidigital number, since it uses as much as digits as its factorization.

1650813696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1650813696 is about 40630.2066940349. The cubic root of 1650813696 is about 1181.8599643424.

The spelling of 1650813696 in words is "one billion, six hundred fifty million, eight hundred thirteen thousand, six hundred ninety-six".