65701377672545 has 8 divisors (see below), whose sum is σ = 78848334207720. Its totient is φ = 52556648137600.

The previous prime is 65701377672509. The next prime is 65701377672577. The reversal of 65701377672545 is 54527677310756.

It can be written as a sum of positive squares in 4 ways, for example, as 13790260498576 + 51911117173969 = 3713524^2 + 7204937^2 .

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

It is not a de Polignac number, because 65701377672545 - 2⁶ = 65701377672481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556685150 + ... + 556803159.

It is an arithmetic number, because the mean of its divisors is an integer number (9856041775965).

Almost surely, 2^{65701377672545} is an apocalyptic number.

It is an amenable number.

65701377672545 is a deficient number, since it is larger than the sum of its proper divisors (13146956535175).

65701377672545 is a wasteful number, since it uses less digits than its factorization.

65701377672545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113500115.

The product of its (nonzero) digits is 259308000, while the sum is 65.

The spelling of 65701377672545 in words is "sixty-five trillion, seven hundred one billion, three hundred seventy-seven million, six hundred seventy-two thousand, five hundred forty-five".