66102466 has 4 divisors (see below), whose sum is σ = 99153702. Its totient is φ = 33051232.

The previous prime is 66102457. The next prime is 66102499. The reversal of 66102466 is 66420166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45171841 + 20930625 = 6721^2 + 4575^2 .

It is a super-2 number, since 2×66102466² = 8739072022562312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16525615 + ... + 16525618.

Almost surely, 2^66102466 is an apocalyptic number.

66102466 is a deficient number, since it is larger than the sum of its proper divisors (33051236).

66102466 is a wasteful number, since it uses less digits than its factorization.

66102466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33051235.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66102466 is about 8130.3423052169. The cubic root of 66102466 is about 404.3330301385. Note that the first 3 decimals are identical.

The spelling of 66102466 in words is "sixty-six million, one hundred two thousand, four hundred sixty-six".