66351396 has 12 divisors (see below), whose sum is σ = 154819952. Its totient is φ = 22117128.

The previous prime is 66351367. The next prime is 66351409. The reversal of 66351396 is 69315366.

66351396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×66351396² = 8805015502297632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2764630 + ... + 2764653.

Almost surely, 2^66351396 is an apocalyptic number.

It is an amenable number.

66351396 is an abundant number, since it is smaller than the sum of its proper divisors (88468556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66351396 is a wasteful number, since it uses less digits than its factorization.

66351396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529290 (or 5529288 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 66351396 is about 8145.6366233708. The cubic root of 66351396 is about 404.8399428499.

The spelling of 66351396 in words is "sixty-six million, three hundred fifty-one thousand, three hundred ninety-six".