51661650150035 has 16 divisors (see below), whose sum is σ = 62018905960704. Its totient is φ = 41312706301152.

The previous prime is 51661650149959. The next prime is 51661650150073. The reversal of 51661650150035 is 53005105616615.

It is a cyclic number.

It is not a de Polignac number, because 51661650150035 - 2¹² = 51661650145939 is a prime.

It is a super-2 number, since 2×51661650150035² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125497154 + ... + 125908136.

It is an arithmetic number, because the mean of its divisors is an integer number (3876181622544).

Almost surely, 2^{51661650150035} is an apocalyptic number.

51661650150035 is a deficient number, since it is larger than the sum of its proper divisors (10357255810669).

51661650150035 is a wasteful number, since it uses less digits than its factorization.

51661650150035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421034.

The product of its (nonzero) digits is 405000, while the sum is 44.

The spelling of 51661650150035 in words is "fifty-one trillion, six hundred sixty-one billion, six hundred fifty million, one hundred fifty thousand, thirty-five".