66914410 has 16 divisors (see below), whose sum is σ = 121257000. Its totient is φ = 26585536.

The previous prime is 66914401. The next prime is 66914411. The reversal of 66914410 is 1441966.

It can be written as a sum of positive squares in 4 ways, for example, as 28313041 + 38601369 = 5321^2 + 6213^2 .

It is not an unprimeable number, because it can be changed into a prime (66914411) 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, 20965 + ... + 23944.

Almost surely, 2^66914410 is an apocalyptic number.

66914410 is a deficient number, since it is larger than the sum of its proper divisors (54342590).

66914410 is a wasteful number, since it uses less digits than its factorization.

66914410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45065.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 66914410 is about 8180.1228597130. The cubic root of 66914410 is about 405.9817871419.

The spelling of 66914410 in words is "sixty-six million, nine hundred fourteen thousand, four hundred ten".