16948881357 has 16 divisors (see below), whose sum is σ = 23951904192. Its totient is φ = 10623893760.

The previous prime is 16948881347. The next prime is 16948881373. The reversal of 16948881357 is 75318884961.

It is not a de Polignac number, because 16948881357 - 2¹⁴ = 16948864973 is a prime.

It is a super-2 number, since 2×16948881357² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16948881357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16948881347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115819 + ... + 217512.

It is an arithmetic number, because the mean of its divisors is an integer number (1496994012).

Almost surely, 2^16948881357 is an apocalyptic number.

16948881357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16948881357 is a deficient number, since it is larger than the sum of its proper divisors (7003022835).

16948881357 is a wasteful number, since it uses less digits than its factorization.

16948881357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334348.

The product of its digits is 11612160, while the sum is 60.

The spelling of 16948881357 in words is "sixteen billion, nine hundred forty-eight million, eight hundred eighty-one thousand, three hundred fifty-seven".