65164294970742 has 16 divisors (see below), whose sum is σ = 142176643572672. Its totient is φ = 19746756051720.

The previous prime is 65164294970741. The next prime is 65164294970777. The reversal of 65164294970742 is 24707949246156.

It is a super-2 number, since 2×65164294970742² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 987337802587 = 65164294970742 / (6 + 5 + 1 + 6 + 4 + 2 + 9 + 4 + 9 + 7 + 0 + 7 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65164294970741) 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, 493668901228 + ... + 493668901359.

It is an arithmetic number, because the mean of its divisors is an integer number (8886040223292).

Almost surely, 2^{65164294970742} is an apocalyptic number.

65164294970742 is an abundant number, since it is smaller than the sum of its proper divisors (77012348601930).

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

65164294970742 is a wasteful number, since it uses less digits than its factorization.

65164294970742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987337802603.

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 65164294970742 in words is "sixty-five trillion, one hundred sixty-four billion, two hundred ninety-four million, nine hundred seventy thousand, seven hundred forty-two".