65350157338921 has 64 divisors (see below), whose sum is σ = 81671136870400. Its totient is φ = 50915682349056.

The previous prime is 65350157338877. The next prime is 65350157338937. The reversal of 65350157338921 is 12983375105356.

It is a happy number.

65350157338921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65350157338921 - 2¹⁵ = 65350157306153 is a prime.

It is a super-2 number, since 2×65350157338921² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65350157338951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 979156570 + ... + 979223308.

It is an arithmetic number, because the mean of its divisors is an integer number (1276111513600).

Almost surely, 2^{65350157338921} is an apocalyptic number.

It is an amenable number.

65350157338921 is a deficient number, since it is larger than the sum of its proper divisors (16320979531479).

65350157338921 is a wasteful number, since it uses less digits than its factorization.

65350157338921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67518.

The product of its (nonzero) digits is 20412000, while the sum is 58.

The spelling of 65350157338921 in words is "sixty-five trillion, three hundred fifty billion, one hundred fifty-seven million, three hundred thirty-eight thousand, nine hundred twenty-one".