16111051 has 4 divisors (see below), whose sum is σ = 17575704. Its totient is φ = 14646400.

The previous prime is 16111003. The next prime is 16111057. The reversal of 16111051 is 15011161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16111051 - 2¹¹ = 16109003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16111057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732310 + ... + 732331.

It is an arithmetic number, because the mean of its divisors is an integer number (4393926).

Almost surely, 2^16111051 is an apocalyptic number.

16111051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16111051 is a deficient number, since it is larger than the sum of its proper divisors (1464653).

16111051 is a wasteful number, since it uses less digits than its factorization.

16111051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464652.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 16111051 is about 4013.8573716563. The cubic root of 16111051 is about 252.5658476111.

It can be divided in two parts, 161110 and 51, that added together give a palindrome (161161).

The spelling of 16111051 in words is "sixteen million, one hundred eleven thousand, fifty-one".