60665615566655 has 64 divisors (see below), whose sum is σ = 80422391462400. Its totient is φ = 43566099333120.

The previous prime is 60665615566559. The next prime is 60665615566679. The reversal of 60665615566655 is 55666551656606.

It is not a de Polignac number, because 60665615566655 - 2²² = 60665611372351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1039317311 + ... + 1039375679.

It is an arithmetic number, because the mean of its divisors is an integer number (1256599866600).

Almost surely, 2^{60665615566655} is an apocalyptic number.

60665615566655 is a deficient number, since it is larger than the sum of its proper divisors (19756775895745).

60665615566655 is a wasteful number, since it uses less digits than its factorization.

60665615566655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59304.

The product of its (nonzero) digits is 874800000, while the sum is 68.

The spelling of 60665615566655 in words is "sixty trillion, six hundred sixty-five billion, six hundred fifteen million, five hundred sixty-six thousand, six hundred fifty-five".