210561161006 has 16 divisors (see below), whose sum is σ = 360967962624. Its totient is φ = 90239004504.

The previous prime is 210561160961. The next prime is 210561161009. The reversal of 210561161006 is 600161165012.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210561161006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210561161009) 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, 1375211 + ... + 1520633.

It is an arithmetic number, because the mean of its divisors is an integer number (22560497664).

Almost surely, 2^210561161006 is an apocalyptic number.

210561161006 is a deficient number, since it is larger than the sum of its proper divisors (150406801618).

210561161006 is a wasteful number, since it uses less digits than its factorization.

210561161006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248855.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 210561161006 in words is "two hundred ten billion, five hundred sixty-one million, one hundred sixty-one thousand, six".