165120233110402 has 128 divisors (see below), whose sum is σ = 275948031744000. Its totient is φ = 73790977397760.

The previous prime is 165120233110351. The next prime is 165120233110429. The reversal of 165120233110402 is 204011332021561.

165120233110402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6449240533 + ... + 6449266135.

It is an arithmetic number, because the mean of its divisors is an integer number (2155843998000).

Almost surely, 2^{165120233110402} is an apocalyptic number.

165120233110402 is a deficient number, since it is larger than the sum of its proper divisors (110827798633598).

165120233110402 is a wasteful number, since it uses less digits than its factorization.

165120233110402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26456.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 165120233110402 its reverse (204011332021561), we get a palindrome (369131565131963).

The spelling of 165120233110402 in words is "one hundred sixty-five trillion, one hundred twenty billion, two hundred thirty-three million, one hundred ten thousand, four hundred two".