7666166136 has 32 divisors (see below), whose sum is σ = 19168399440. Its totient is φ = 2554990848.

The previous prime is 7666166117. The next prime is 7666166147. The reversal of 7666166136 is 6316616667.

It is a congruent number.

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, 160770 + ... + 202926.

Almost surely, 2^7666166136 is an apocalyptic number.

It is an amenable number.

7666166136 is an abundant number, since it is smaller than the sum of its proper divisors (11502233304).

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

7666166136 is a wasteful number, since it uses less digits than its factorization.

7666166136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49743 (or 49739 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The square root of 7666166136 is about 87556.6452989149. The cubic root of 7666166136 is about 1971.7843209954.

The spelling of 7666166136 in words is "seven billion, six hundred sixty-six million, one hundred sixty-six thousand, one hundred thirty-six".