50001601111664 has 10 divisors (see below), whose sum is σ = 96878102153880. Its totient is φ = 25000800555824.

The previous prime is 50001601111661. The next prime is 50001601111691. The reversal of 50001601111664 is 46611110610005.

It is a super-2 number, since 2×50001601111664² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50001601111664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50001601111661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562550034724 + ... + 1562550034755.

It is an arithmetic number, because the mean of its divisors is an integer number (9687810215388).

Almost surely, 2^{50001601111664} is an apocalyptic number.

It is an amenable number.

50001601111664 is a deficient number, since it is larger than the sum of its proper divisors (46876501042216).

50001601111664 is a wasteful number, since it uses less digits than its factorization.

50001601111664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125100069487 (or 3125100069481 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 50001601111664 its reverse (46611110610005), we get a palindrome (96612711721669).

The spelling of 50001601111664 in words is "fifty trillion, one billion, six hundred one million, one hundred eleven thousand, six hundred sixty-four".