1663950937 has 8 divisors (see below), whose sum is σ = 1815806880. Its totient is φ = 1512192960.

The previous prime is 1663950923. The next prime is 1663950941. The reversal of 1663950937 is 7390593661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1663950937 - 2¹¹ = 1663948889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1663950907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13614 + ... + 59272.

It is an arithmetic number, because the mean of its divisors is an integer number (226975860).

Almost surely, 2^1663950937 is an apocalyptic number.

It is an amenable number.

1663950937 is a deficient number, since it is larger than the sum of its proper divisors (151855943).

1663950937 is a wasteful number, since it uses less digits than its factorization.

1663950937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48983.

The product of its (nonzero) digits is 918540, while the sum is 49.

The square root of 1663950937 is about 40791.5547264382. The cubic root of 1663950937 is about 1184.9867806984.

It can be divided in two parts, 16639 and 50937, that added together give a palindrome (67576).

The spelling of 1663950937 in words is "one billion, six hundred sixty-three million, nine hundred fifty thousand, nine hundred thirty-seven".