66694802 has 16 divisors (see below), whose sum is σ = 105719040. Its totient is φ = 31492032.

The previous prime is 66694799. The next prime is 66694813. The reversal of 66694802 is 20849666.

It is a super-2 number, since 2×66694802² = 8896393227638408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66694802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5543 + ... + 12810.

It is an arithmetic number, because the mean of its divisors is an integer number (6607440).

Almost surely, 2^66694802 is an apocalyptic number.

66694802 is a deficient number, since it is larger than the sum of its proper divisors (39024238).

66694802 is a wasteful number, since it uses less digits than its factorization.

66694802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18457.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 66694802 is about 8166.6885577938. The cubic root of 66694802 is about 405.5371666092.

The spelling of 66694802 in words is "sixty-six million, six hundred ninety-four thousand, eight hundred two".