165476361906 has 12 divisors (see below), whose sum is σ = 358532117502. Its totient is φ = 55158787296.

The previous prime is 165476361901. The next prime is 165476362133. The reversal of 165476361906 is 609163674561.

It is a happy number.

165476361906 is a `hidden beast` number, since 1 + 6 + 547 + 6 + 3 + 6 + 1 + 90 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 154928044881 + 10548317025 = 393609^2 + 102705^2 .

It is not an unprimeable number, because it can be changed into a prime (165476361901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4596565591 + ... + 4596565626.

Almost surely, 2^165476361906 is an apocalyptic number.

165476361906 is an abundant number, since it is smaller than the sum of its proper divisors (193055755596).

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

165476361906 is a wasteful number, since it uses less digits than its factorization.

165476361906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193131225 (or 9193131222 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 165476361906 in words is "one hundred sixty-five billion, four hundred seventy-six million, three hundred sixty-one thousand, nine hundred six".