65616061436 has 12 divisors (see below), whose sum is σ = 115017284928. Its totient is φ = 32753980032.

The previous prime is 65616061417. The next prime is 65616061447. The reversal of 65616061436 is 63416061656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13509941 + ... + 13514796.

It is an arithmetic number, because the mean of its divisors is an integer number (9584773744).

Almost surely, 2^65616061436 is an apocalyptic number.

It is an amenable number.

65616061436 is a deficient number, since it is larger than the sum of its proper divisors (49401223492).

65616061436 is a wasteful number, since it uses less digits than its factorization.

65616061436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27025348 (or 27025346 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 65616061436 in words is "sixty-five billion, six hundred sixteen million, sixty-one thousand, four hundred thirty-six".