16166010501 has 6 divisors (see below), whose sum is σ = 23350904070. Its totient is φ = 10777340328.

The previous prime is 16166010493. The next prime is 16166010547. The reversal of 16166010501 is 10501066161.

16166010501 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 601 + 0 + 50 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8097300225 + 8068710276 = 89985^2 + 89826^2 .

It is not a de Polignac number, because 16166010501 - 2³ = 16166010493 is a prime.

It is a super-2 number, since 2×16166010501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16166010701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 898111686 + ... + 898111703.

It is an arithmetic number, because the mean of its divisors is an integer number (3891817345).

Almost surely, 2^16166010501 is an apocalyptic number.

It is an amenable number.

16166010501 is a deficient number, since it is larger than the sum of its proper divisors (7184893569).

16166010501 is a wasteful number, since it uses less digits than its factorization.

16166010501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796223395 (or 1796223392 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 16166010501 its reverse (10501066161), we get a palindrome (26667076662).

The spelling of 16166010501 in words is "sixteen billion, one hundred sixty-six million, ten thousand, five hundred one".