161233153510 has 64 divisors (see below), whose sum is σ = 341122259520. Its totient is φ = 54094049280.

The previous prime is 161233153481. The next prime is 161233153519. The reversal of 161233153510 is 15351332161.

It is a super-2 number, since 2×161233153510² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161233153519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3052606 + ... + 3104974.

It is an arithmetic number, because the mean of its divisors is an integer number (5330035305).

Almost surely, 2^161233153510 is an apocalyptic number.

161233153510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161233153510 is an abundant number, since it is smaller than the sum of its proper divisors (179889106010).

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

161233153510 is a wasteful number, since it uses less digits than its factorization.

161233153510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54553.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 161233153510 its reverse (15351332161), we get a palindrome (176584485671).

The spelling of 161233153510 in words is "one hundred sixty-one billion, two hundred thirty-three million, one hundred fifty-three thousand, five hundred ten".