16170149720 has 16 divisors (see below), whose sum is σ = 36382836960. Its totient is φ = 6468059872.

The previous prime is 16170149683. The next prime is 16170149729. The reversal of 16170149720 is 2794107161.

It is a super-2 number, since 2×16170149720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16170149729) 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, 202126832 + ... + 202126911.

It is an arithmetic number, because the mean of its divisors is an integer number (2273927310).

Almost surely, 2^16170149720 is an apocalyptic number.

16170149720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16170149720 is an abundant number, since it is smaller than the sum of its proper divisors (20212687240).

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

16170149720 is a wasteful number, since it uses less digits than its factorization.

16170149720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404253754 (or 404253750 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 16170149720 in words is "sixteen billion, one hundred seventy million, one hundred forty-nine thousand, seven hundred twenty".