66260612603516 has 6 divisors (see below), whose sum is σ = 115956072056160. Its totient is φ = 33130306301756.

The previous prime is 66260612603509. The next prime is 66260612603609. The reversal of 66260612603516 is 61530621606266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282576575436 + ... + 8282576575443.

It is an arithmetic number, because the mean of its divisors is an integer number (19326012009360).

Almost surely, 2^{66260612603516} is an apocalyptic number.

It is an amenable number.

66260612603516 is a deficient number, since it is larger than the sum of its proper divisors (49695459452644).

66260612603516 is a wasteful number, since it uses less digits than its factorization.

66260612603516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565153150883 (or 16565153150881 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 66260612603516 in words is "sixty-six trillion, two hundred sixty billion, six hundred twelve million, six hundred three thousand, five hundred sixteen".