165670534 has 8 divisors (see below), whose sum is σ = 255222288. Its totient is φ = 80596440.

The previous prime is 165670501. The next prime is 165670537. The reversal of 165670534 is 435076561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 165670493 and 165670502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165670537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119322 + ... + 1119469.

It is an arithmetic number, because the mean of its divisors is an integer number (31902786).

Almost surely, 2^165670534 is an apocalyptic number.

165670534 is a deficient number, since it is larger than the sum of its proper divisors (89551754).

165670534 is a wasteful number, since it uses less digits than its factorization.

165670534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238830.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 165670534 is about 12871.3066158801. The cubic root of 165670534 is about 549.2226307105. Note that the first 3 decimals are identical.

The spelling of 165670534 in words is "one hundred sixty-five million, six hundred seventy thousand, five hundred thirty-four".