16172151652 has 12 divisors (see below), whose sum is σ = 28688954476. Its totient is φ = 7975307520.

The previous prime is 16172151649. The next prime is 16172151659. The reversal of 16172151652 is 25615127161.

It can be written as a sum of positive squares in 2 ways, for example, as 12617130276 + 3555021376 = 112326^2 + 59624^2 .

It is not an unprimeable number, because it can be changed into a prime (16172151659) 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, 27691749 + ... + 27692332.

Almost surely, 2^16172151652 is an apocalyptic number.

It is an amenable number.

16172151652 is a deficient number, since it is larger than the sum of its proper divisors (12516802824).

16172151652 is a wasteful number, since it uses less digits than its factorization.

16172151652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55384158 (or 55384156 counting only the distinct ones).

The product of its digits is 25200, while the sum is 37.

The spelling of 16172151652 in words is "sixteen billion, one hundred seventy-two million, one hundred fifty-one thousand, six hundred fifty-two".