65377616457 has 16 divisors (see below), whose sum is σ = 87470712000. Its totient is φ = 43435014144.

The previous prime is 65377616441. The next prime is 65377616461. The reversal of 65377616457 is 75461677356.

It is a happy number.

65377616457 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 65377616457 - 2⁴ = 65377616441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65377616397 and 65377616406.

It is not an unprimeable number, because it can be changed into a prime (65377616417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1224169 + ... + 1276457.

It is an arithmetic number, because the mean of its divisors is an integer number (5466919500).

Almost surely, 2^65377616457 is an apocalyptic number.

It is an amenable number.

65377616457 is a deficient number, since it is larger than the sum of its proper divisors (22093095543).

65377616457 is a wasteful number, since it uses less digits than its factorization.

65377616457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53720.

The product of its digits is 22226400, while the sum is 57.

The spelling of 65377616457 in words is "sixty-five billion, three hundred seventy-seven million, six hundred sixteen thousand, four hundred fifty-seven".