16061156531 has 8 divisors (see below), whose sum is σ = 18407609184. Its totient is φ = 13727704320.

The previous prime is 16061156497. The next prime is 16061156543. The reversal of 16061156531 is 13565116061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16061156531 is a prime.

It is a super-2 number, since 2×16061156531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16061156491 and 16061156500.

It is not an unprimeable number, because it can be changed into a prime (16061156561) 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, 3247460 + ... + 3252401.

It is an arithmetic number, because the mean of its divisors is an integer number (2300951148).

Almost surely, 2^16061156531 is an apocalyptic number.

16061156531 is a deficient number, since it is larger than the sum of its proper divisors (2346452653).

16061156531 is an equidigital number, since it uses as much as digits as its factorization.

16061156531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500221.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 16061156531 in words is "sixteen billion, sixty-one million, one hundred fifty-six thousand, five hundred thirty-one".