65492954671968 has 144 divisors (see below), whose sum is σ = 187086361434336. Its totient is φ = 21732614737920.

The previous prime is 65492954671933. The next prime is 65492954672029. The reversal of 65492954671968 is 86917645929456.

65492954671968 is a `hidden beast` number, since 6 + 5 + 4 + 9 + 2 + 9 + 546 + 7 + 1 + 9 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×65492954671968² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68763096 + ... + 69709032.

It is an arithmetic number, because the mean of its divisors is an integer number (1299210843294).

Almost surely, 2^{65492954671968} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65492954671968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93543180717168).

65492954671968 is an abundant number, since it is smaller than the sum of its proper divisors (121593406762368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65492954671968 is a wasteful number, since it uses less digits than its factorization.

65492954671968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947037 (or 947026 counting only the distinct ones).

The product of its digits is 7054387200, while the sum is 81.

The spelling of 65492954671968 in words is "sixty-five trillion, four hundred ninety-two billion, nine hundred fifty-four million, six hundred seventy-one thousand, nine hundred sixty-eight".