66469402 has 16 divisors (see below), whose sum is σ = 105056640. Its totient is φ = 31478832.

The previous prime is 66469373. The next prime is 66469409. The reversal of 66469402 is 20496466.

It is not an unprimeable number, because it can be changed into a prime (66469409) 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, 2277 + ... + 11752.

It is an arithmetic number, because the mean of its divisors is an integer number (6566040).

Almost surely, 2^66469402 is an apocalyptic number.

66469402 is a deficient number, since it is larger than the sum of its proper divisors (38587238).

66469402 is a wasteful number, since it uses less digits than its factorization.

66469402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14157.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 66469402 is about 8152.8769155434. The cubic root of 66469402 is about 405.0798034073.

The spelling of 66469402 in words is "sixty-six million, four hundred sixty-nine thousand, four hundred two".