16538703311 has 32 divisors (see below), whose sum is σ = 19595520000. Its totient is φ = 13811516928.

The previous prime is 16538703299. The next prime is 16538703323. The reversal of 16538703311 is 11330783561.

It is an interprime number because it is at equal distance from previous prime (16538703299) and next prime (16538703323).

It is not a de Polignac number, because 16538703311 - 2¹⁸ = 16538441167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16538703211) 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, 4082615 + ... + 4086663.

It is an arithmetic number, because the mean of its divisors is an integer number (612360000).

Almost surely, 2^16538703311 is an apocalyptic number.

16538703311 is a deficient number, since it is larger than the sum of its proper divisors (3056816689).

16538703311 is a wasteful number, since it uses less digits than its factorization.

16538703311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 16538703311 in words is "sixteen billion, five hundred thirty-eight million, seven hundred three thousand, three hundred eleven".