66466131 has 8 divisors (see below), whose sum is σ = 90507264. Its totient is φ = 43367880.

The previous prime is 66466121. The next prime is 66466163. The reversal of 66466131 is 13166466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66466131 - 2¹⁰ = 66465107 is a prime.

It is a super-2 number, since 2×66466131² = 8835493140218322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66466092 and 66466101.

It is not an unprimeable number, because it can be changed into a prime (66466121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235555 + ... + 235836.

It is an arithmetic number, because the mean of its divisors is an integer number (11313408).

Almost surely, 2^66466131 is an apocalyptic number.

66466131 is a deficient number, since it is larger than the sum of its proper divisors (24041133).

66466131 is a wasteful number, since it uses less digits than its factorization.

66466131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471441.

The product of its digits is 15552, while the sum is 33.

The square root of 66466131 is about 8152.6763090411. The cubic root of 66466131 is about 405.0731585566.

It can be divided in two parts, 664 and 66131, that added together give a triangular number (66795 = T₃₆₅).

The spelling of 66466131 in words is "sixty-six million, four hundred sixty-six thousand, one hundred thirty-one".