3661517166 has 16 divisors (see below), whose sum is σ = 7493337984. Its totient is φ = 1192121784.

The previous prime is 3661517161. The next prime is 3661517179. The reversal of 3661517166 is 6617151663.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661517161) 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, 7095706 + ... + 7096221.

It is an arithmetic number, because the mean of its divisors is an integer number (468333624).

Almost surely, 2^3661517166 is an apocalyptic number.

3661517166 is an abundant number, since it is smaller than the sum of its proper divisors (3831820818).

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

3661517166 is a wasteful number, since it uses less digits than its factorization.

3661517166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14191975.

The product of its digits is 136080, while the sum is 42.

The square root of 3661517166 is about 60510.4715400566. The cubic root of 3661517166 is about 1541.2994550164.

The spelling of 3661517166 in words is "three billion, six hundred sixty-one million, five hundred seventeen thousand, one hundred sixty-six".