16507127061 has 6 divisors (see below), whose sum is σ = 23843627990. Its totient is φ = 11004751368.

The previous prime is 16507127051. The next prime is 16507127083. The reversal of 16507127061 is 16072170561.

16507127061 is a `hidden beast` number, since 16 + 507 + 12 + 70 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9195851025 + 7311276036 = 95895^2 + 85506^2 .

It is not a de Polignac number, because 16507127061 - 2⁹ = 16507126549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16507127011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 917062606 + ... + 917062623.

Almost surely, 2^16507127061 is an apocalyptic number.

It is an amenable number.

16507127061 is a deficient number, since it is larger than the sum of its proper divisors (7336500929).

16507127061 is a wasteful number, since it uses less digits than its factorization.

16507127061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834125235 (or 1834125232 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 16507127061 in words is "sixteen billion, five hundred seven million, one hundred twenty-seven thousand, sixty-one".