66246404 has 24 divisors (see below), whose sum is σ = 133132608. Its totient is φ = 28254240.

The previous prime is 66246377. The next prime is 66246409. The reversal of 66246404 is 40464266.

It is not an unprimeable number, because it can be changed into a prime (66246409) 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, 302 + ... + 11514.

It is an arithmetic number, because the mean of its divisors is an integer number (5547192).

Almost surely, 2^66246404 is an apocalyptic number.

It is an amenable number.

66246404 is an abundant number, since it is smaller than the sum of its proper divisors (66886204).

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

66246404 is a wasteful number, since it uses less digits than its factorization.

66246404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11435 (or 11433 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 66246404 is about 8139.1893945282. The cubic root of 66246404 is about 404.6262955267.

The spelling of 66246404 in words is "sixty-six million, two hundred forty-six thousand, four hundred four".