16337955720 has 128 divisors (see below), whose sum is σ = 49859712000. Its totient is φ = 4282147584.

The previous prime is 16337955709. The next prime is 16337955721. The reversal of 16337955720 is 2755973361.

It is a self number, because there is not a number n which added to its sum of digits gives 16337955720.

It is not an unprimeable number, because it can be changed into a prime (16337955721) 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, 1977919 + ... + 1986161.

It is an arithmetic number, because the mean of its divisors is an integer number (389529000).

Almost surely, 2^16337955720 is an apocalyptic number.

16337955720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16337955720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24929856000).

16337955720 is an abundant number, since it is smaller than the sum of its proper divisors (33521756280).

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

16337955720 is a wasteful number, since it uses less digits than its factorization.

16337955720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8539 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 48.

The spelling of 16337955720 in words is "sixteen billion, three hundred thirty-seven million, nine hundred fifty-five thousand, seven hundred twenty".