1650663357 has 16 divisors (see below), whose sum is σ = 2529354240. Its totient is φ = 937964592.

The previous prime is 1650663353. The next prime is 1650663397. The reversal of 1650663357 is 7533660561.

It is a happy number.

It is not a de Polignac number, because 1650663357 - 2² = 1650663353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650663353) 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, 215803 + ... + 223320.

It is an arithmetic number, because the mean of its divisors is an integer number (158084640).

Almost surely, 2^1650663357 is an apocalyptic number.

It is an amenable number.

1650663357 is a deficient number, since it is larger than the sum of its proper divisors (878690883).

1650663357 is a wasteful number, since it uses less digits than its factorization.

1650663357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439312.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 1650663357 is about 40628.3565628737. The cubic root of 1650663357 is about 1181.8240860682.

The spelling of 1650663357 in words is "one billion, six hundred fifty million, six hundred sixty-three thousand, three hundred fifty-seven".