65616662410 has 16 divisors (see below), whose sum is σ = 127195376616. Its totient is φ = 24227690688.

The previous prime is 65616662401. The next prime is 65616662411. The reversal of 65616662410 is 1426661656.

It can be written as a sum of positive squares in 4 ways, for example, as 28412810721 + 37203851689 = 168561^2 + 192883^2 .

It is not an unprimeable number, because it can be changed into a prime (65616662411) 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, 252371649 + ... + 252371908.

Almost surely, 2^65616662410 is an apocalyptic number.

65616662410 is a deficient number, since it is larger than the sum of its proper divisors (61578714206).

65616662410 is a wasteful number, since it uses less digits than its factorization.

65616662410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504743577.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 65616662410 in words is "sixty-five billion, six hundred sixteen million, six hundred sixty-two thousand, four hundred ten".