4154520666 has 16 divisors (see below), whose sum is σ = 8422864704. Its totient is φ = 1365869664.

The previous prime is 4154520653. The next prime is 4154520697. The reversal of 4154520666 is 6660254514.

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, 4742166 + ... + 4743041.

It is an arithmetic number, because the mean of its divisors is an integer number (526429044).

Almost surely, 2^4154520666 is an apocalyptic number.

4154520666 is an abundant number, since it is smaller than the sum of its proper divisors (4268344038).

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

4154520666 is a wasteful number, since it uses less digits than its factorization.

4154520666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485285.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 4154520666 is about 64455.5712564864. The cubic root of 4154520666 is about 1607.5838746187.

The spelling of 4154520666 in words is "four billion, one hundred fifty-four million, five hundred twenty thousand, six hundred sixty-six".