66260463 has 16 divisors (see below), whose sum is σ = 90837120. Its totient is φ = 42938784.

The previous prime is 66260431. The next prime is 66260471. The reversal of 66260463 is 36406266.

It is not a de Polignac number, because 66260463 - 2⁵ = 66260431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66260063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28420 + ... + 30662.

It is an arithmetic number, because the mean of its divisors is an integer number (5677320).

Almost surely, 2^66260463 is an apocalyptic number.

66260463 is a deficient number, since it is larger than the sum of its proper divisors (24576657).

66260463 is a wasteful number, since it uses less digits than its factorization.

66260463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 66260463 is about 8140.0530096554. The cubic root of 66260463 is about 404.6549171493.

It can be divided in two parts, 6 and 6260463, that multiplied together give a triangular number (37562778 = T₈₆₆₇).

The spelling of 66260463 in words is "sixty-six million, two hundred sixty thousand, four hundred sixty-three".