16135646061 has 8 divisors (see below), whose sum is σ = 21542029920. Its totient is φ = 10743179792.

The previous prime is 16135646057. The next prime is 16135646077. The reversal of 16135646061 is 16064653161.

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

It is a cyclic number.

It is not a de Polignac number, because 16135646061 - 2² = 16135646057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16135646161) 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, 3476691 + ... + 3481328.

It is an arithmetic number, because the mean of its divisors is an integer number (2692753740).

Almost surely, 2^16135646061 is an apocalyptic number.

It is an amenable number.

16135646061 is a deficient number, since it is larger than the sum of its proper divisors (5406383859).

16135646061 is an equidigital number, since it uses as much as digits as its factorization.

16135646061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958795.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 16135646061 in words is "sixteen billion, one hundred thirty-five million, six hundred forty-six thousand, sixty-one".