16124401720 has 32 divisors (see below), whose sum is σ = 41462748000. Its totient is φ = 5528366208.

The previous prime is 16124401697. The next prime is 16124401747. The reversal of 16124401720 is 2710442161.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28793295 + ... + 28793854.

It is an arithmetic number, because the mean of its divisors is an integer number (1295710875).

Almost surely, 2^16124401720 is an apocalyptic number.

16124401720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16124401720 is an abundant number, since it is smaller than the sum of its proper divisors (25338346280).

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

16124401720 is a wasteful number, since it uses less digits than its factorization.

16124401720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57587167 (or 57587163 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 16124401720 its reverse (2710442161), we get a palindrome (18834843881).

The spelling of 16124401720 in words is "sixteen billion, one hundred twenty-four million, four hundred one thousand, seven hundred twenty".