66460131 has 6 divisors (see below), whose sum is σ = 95997980. Its totient is φ = 44306748.

The previous prime is 66460111. The next prime is 66460211. The reversal of 66460131 is 13106466.

66460131 is a `hidden beast` number, since 6 + 646 + 0 + 13 + 1 = 666.

It is not a de Polignac number, because 66460131 - 2²¹ = 64362979 is a prime.

It is a super-2 number, since 2×66460131² = 8833898025074322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66460095 and 66460104.

It is not an unprimeable number, because it can be changed into a prime (66460111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3692221 + ... + 3692238.

Almost surely, 2^66460131 is an apocalyptic number.

66460131 is a deficient number, since it is larger than the sum of its proper divisors (29537849).

66460131 is a wasteful number, since it uses less digits than its factorization.

66460131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384465 (or 7384462 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 66460131 is about 8152.3083234137. The cubic root of 66460131 is about 405.0609693305.

Adding to 66460131 its reverse (13106466), we get a palindrome (79566597).

The spelling of 66460131 in words is "sixty-six million, four hundred sixty thousand, one hundred thirty-one".