165151506012 has 24 divisors (see below), whose sum is σ = 391884931200. Its totient is φ = 54117442416.

The previous prime is 165151505983. The next prime is 165151506019. The reversal of 165151506012 is 210605151561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151506019) 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, 116631712 + ... + 116633127.

It is an arithmetic number, because the mean of its divisors is an integer number (16328538800).

Almost surely, 2^165151506012 is an apocalyptic number.

165151506012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165151506012 is an abundant number, since it is smaller than the sum of its proper divisors (226733425188).

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

165151506012 is a wasteful number, since it uses less digits than its factorization.

165151506012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233264905 (or 233264903 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

Adding to 165151506012 its reverse (210605151561), we get a palindrome (375756657573).

The spelling of 165151506012 in words is "one hundred sixty-five billion, one hundred fifty-one million, five hundred six thousand, twelve".