16118820501 has 16 divisors (see below), whose sum is σ = 24566418048. Its totient is φ = 9209102400.

The previous prime is 16118820467. The next prime is 16118820503. The reversal of 16118820501 is 10502881161.

It is not a de Polignac number, because 16118820501 - 2¹⁰ = 16118819477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16118820503) 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, 56311 + ... + 188171.

It is an arithmetic number, because the mean of its divisors is an integer number (1535401128).

Almost surely, 2^16118820501 is an apocalyptic number.

It is an amenable number.

16118820501 is a deficient number, since it is larger than the sum of its proper divisors (8447597547).

16118820501 is a wasteful number, since it uses less digits than its factorization.

16118820501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137692.

The product of its (nonzero) digits is 3840, while the sum is 33.

The spelling of 16118820501 in words is "sixteen billion, one hundred eighteen million, eight hundred twenty thousand, five hundred one".