66260468 has 6 divisors (see below), whose sum is σ = 115955826. Its totient is φ = 33130232.

The previous prime is 66260431. The next prime is 66260471. The reversal of 66260468 is 86406266.

It can be written as a sum of positive squares in only one way, i.e., 66129424 + 131044 = 8132^2 + 362^2 .

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, 8282555 + ... + 8282562.

It is an arithmetic number, because the mean of its divisors is an integer number (19325971).

Almost surely, 2^66260468 is an apocalyptic number.

It is an amenable number.

66260468 is a deficient number, since it is larger than the sum of its proper divisors (49695358).

66260468 is a wasteful number, since it uses less digits than its factorization.

66260468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565121 (or 16565119 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 66260468 is about 8140.0533167787. The cubic root of 66260468 is about 404.6549273277.

The spelling of 66260468 in words is "sixty-six million, two hundred sixty thousand, four hundred sixty-eight".