16111877020408 has 128 divisors (see below), whose sum is σ = 33405046920000. Its totient is φ = 7239730544640.

The previous prime is 16111877020399. The next prime is 16111877020423. The reversal of 16111877020408 is 80402077811161.

It is a super-2 number, since 2×16111877020408² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1890839188 + ... + 1890847708.

Almost surely, 2^{16111877020408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16111877020408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16702523460000).

16111877020408 is an abundant number, since it is smaller than the sum of its proper divisors (17293169899592).

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

16111877020408 is a wasteful number, since it uses less digits than its factorization.

16111877020408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745 (or 11741 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 46.

The spelling of 16111877020408 in words is "sixteen trillion, one hundred eleven billion, eight hundred seventy-seven million, twenty thousand, four hundred eight".