10161231216 has 20 divisors (see below), whose sum is σ = 26249847432. Its totient is φ = 3387077056.

The previous prime is 10161231173. The next prime is 10161231247. The reversal of 10161231216 is 61213216101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105846111 + ... + 105846206.

Almost surely, 2^10161231216 is an apocalyptic number.

10161231216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10161231216 is an abundant number, since it is smaller than the sum of its proper divisors (16088616216).

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

10161231216 is a wasteful number, since it uses less digits than its factorization.

10161231216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211692328 (or 211692322 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 10161231216 its reverse (61213216101), we get a palindrome (71374447317).

The spelling of 10161231216 in words is "ten billion, one hundred sixty-one million, two hundred thirty-one thousand, two hundred sixteen".