1631964016 has 10 divisors (see below), whose sum is σ = 3161930312. Its totient is φ = 815982000.

The previous prime is 1631964007. The next prime is 1631964043. The reversal of 1631964016 is 6104691361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50998860 + ... + 50998891.

Almost surely, 2^1631964016 is an apocalyptic number.

1631964016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1631964016 is a deficient number, since it is larger than the sum of its proper divisors (1529966296).

1631964016 is a wasteful number, since it uses less digits than its factorization.

1631964016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101997759 (or 101997753 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1631964016 is about 40397.5743826285. The cubic root of 1631964016 is about 1177.3444101528.

The spelling of 1631964016 in words is "one billion, six hundred thirty-one million, nine hundred sixty-four thousand, sixteen".