65616466 has 16 divisors (see below), whose sum is σ = 102041856. Its totient is φ = 31619376.

The previous prime is 65616461. The next prime is 65616487. The reversal of 65616466 is 66461656.

It is a super-2 number, since 2×65616466² = 8611041220658312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65616461) 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, 3775 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (6377616).

Almost surely, 2^65616466 is an apocalyptic number.

65616466 is a deficient number, since it is larger than the sum of its proper divisors (36425390).

65616466 is a wasteful number, since it uses less digits than its factorization.

65616466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433.

The product of its digits is 155520, while the sum is 40.

The square root of 65616466 is about 8100.3991259690. The cubic root of 65616466 is about 403.3396763037.

The spelling of 65616466 in words is "sixty-five million, six hundred sixteen thousand, four hundred sixty-six".