66457911410 has 32 divisors (see below), whose sum is σ = 130590548352. Its totient is φ = 24149591680.

The previous prime is 66457911397. The next prime is 66457911437. The reversal of 66457911410 is 1411975466.

It is a happy number.

66457911410 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53174 + ... + 368433.

It is an arithmetic number, because the mean of its divisors is an integer number (4080954636).

Almost surely, 2^66457911410 is an apocalyptic number.

66457911410 is a deficient number, since it is larger than the sum of its proper divisors (64132636942).

66457911410 is a wasteful number, since it uses less digits than its factorization.

66457911410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423058.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 66457911410 in words is "sixty-six billion, four hundred fifty-seven million, nine hundred eleven thousand, four hundred ten".