51660112101 has 8 divisors (see below), whose sum is σ = 74178622560. Its totient is φ = 31790838192.

The previous prime is 51660112079. The next prime is 51660112109. The reversal of 51660112101 is 10121106615.

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

It is not a de Polignac number, because 51660112101 - 2⁷ = 51660111973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660112109) 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, 662309091 + ... + 662309168.

It is an arithmetic number, because the mean of its divisors is an integer number (9272327820).

Almost surely, 2^51660112101 is an apocalyptic number.

It is an amenable number.

51660112101 is a deficient number, since it is larger than the sum of its proper divisors (22518510459).

51660112101 is a wasteful number, since it uses less digits than its factorization.

51660112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324618275.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 51660112101 its reverse (10121106615), we get a palindrome (61781218716).

The spelling of 51660112101 in words is "fifty-one billion, six hundred sixty million, one hundred twelve thousand, one hundred one".