3640154166 has 24 divisors (see below), whose sum is σ = 8604001224. Its totient is φ = 1103076960.

The previous prime is 3640154149. The next prime is 3640154191. The reversal of 3640154166 is 6614510463.

It is a happy number.

3640154166 is a `hidden beast` number, since 3 + 640 + 1 + 5 + 4 + 1 + 6 + 6 = 666.

3640154166 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3640154166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9192111 + ... + 9192506.

It is an arithmetic number, because the mean of its divisors is an integer number (358500051).

Almost surely, 2^3640154166 is an apocalyptic number.

3640154166 is an abundant number, since it is smaller than the sum of its proper divisors (4963847058).

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

3640154166 is a wasteful number, since it uses less digits than its factorization.

3640154166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384636 (or 18384633 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3640154166 is about 60333.6901407497. The cubic root of 3640154166 is about 1538.2960528861.

The spelling of 3640154166 in words is "three billion, six hundred forty million, one hundred fifty-four thousand, one hundred sixty-six".