16100161261 has 4 divisors (see below), whose sum is σ = 16103348800. Its totient is φ = 16096973724.

The previous prime is 16100161247. The next prime is 16100161283. The reversal of 16100161261 is 16216100161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16100161261 - 2⁵ = 16100161229 is a prime.

It is a super-2 number, since 2×16100161261² (a number of 21 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 (16100161201) 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, 1586181 + ... + 1596298.

It is an arithmetic number, because the mean of its divisors is an integer number (4025837200).

Almost surely, 2^16100161261 is an apocalyptic number.

It is an amenable number.

16100161261 is a deficient number, since it is larger than the sum of its proper divisors (3187539).

16100161261 is an equidigital number, since it uses as much as digits as its factorization.

16100161261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187538.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 16100161261 in words is "sixteen billion, one hundred million, one hundred sixty-one thousand, two hundred sixty-one".