16156100005509 has 8 divisors (see below), whose sum is σ = 21573474799552. Its totient is φ = 10754729274240.

The previous prime is 16156100005481. The next prime is 16156100005523. The reversal of 16156100005509 is 90550000165161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16156100005509 - 2¹⁵ = 16156099972741 is a prime.

It is a super-2 number, since 2×16156100005509² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16156100005009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4001013337 + ... + 4001017374.

It is an arithmetic number, because the mean of its divisors is an integer number (2696684349944).

Almost surely, 2^{16156100005509} is an apocalyptic number.

It is an amenable number.

16156100005509 is a deficient number, since it is larger than the sum of its proper divisors (5417374794043).

16156100005509 is an equidigital number, since it uses as much as digits as its factorization.

16156100005509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8002031387.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 16156100005509 in words is "sixteen trillion, one hundred fifty-six billion, one hundred million, five thousand, five hundred nine".