61101101001 has 8 divisors (see below), whose sum is σ = 81472125600. Its totient is φ = 40732071872.

The previous prime is 61101100997. The next prime is 61101101057. The reversal of 61101101001 is 10010110116.

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 61101101001 - 2² = 61101100997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61101101081) 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, 425895 + ... + 550988.

It is an arithmetic number, because the mean of its divisors is an integer number (10184015700).

Almost surely, 2^61101101001 is an apocalyptic number.

It is an amenable number.

61101101001 is a deficient number, since it is larger than the sum of its proper divisors (20371024599).

61101101001 is a wasteful number, since it uses less digits than its factorization.

61101101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997735.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 61101101001 its reverse (10010110116), we get a palindrome (71111211117).

The spelling of 61101101001 in words is "sixty-one billion, one hundred one million, one hundred one thousand, one".