526661156161 has 16 divisors (see below), whose sum is σ = 633612988800. Its totient is φ = 427640629248.

The previous prime is 526661156113. The next prime is 526661156171. The reversal of 526661156161 is 161651166625.

It is not a de Polignac number, because 526661156161 - 2⁷ = 526661156033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526661156171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487681 + ... + 2691073.

It is an arithmetic number, because the mean of its divisors is an integer number (39600811800).

Almost surely, 2^526661156161 is an apocalyptic number.

It is an amenable number.

526661156161 is a deficient number, since it is larger than the sum of its proper divisors (106951832639).

526661156161 is a wasteful number, since it uses less digits than its factorization.

526661156161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222888.

The product of its digits is 388800, while the sum is 46.

The spelling of 526661156161 in words is "five hundred twenty-six billion, six hundred sixty-one million, one hundred fifty-six thousand, one hundred sixty-one".