100165610565551 has 16 divisors (see below), whose sum is σ = 104052960791808. Its totient is φ = 96319903680000.

The previous prime is 100165610565469. The next prime is 100165610565589. The reversal of 100165610565551 is 155565016561001.

It is a cyclic number.

It is not a de Polignac number, because 100165610565551 - 2¹⁰ = 100165610564527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100165610565496 and 100165610565505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100165610525551) 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, 4274801 + ... + 14785301.

It is an arithmetic number, because the mean of its divisors is an integer number (6503310049488).

Almost surely, 2^{100165610565551} is an apocalyptic number.

100165610565551 is a deficient number, since it is larger than the sum of its proper divisors (3887350226257).

100165610565551 is a wasteful number, since it uses less digits than its factorization.

100165610565551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512482.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 100165610565551 in words is "one hundred trillion, one hundred sixty-five billion, six hundred ten million, five hundred sixty-five thousand, five hundred fifty-one".