6166121001 has 16 divisors (see below), whose sum is σ = 8258663424. Its totient is φ = 4092186384.

The previous prime is 6166120997. The next prime is 6166121023. The reversal of 6166121001 is 1001216616.

It is not a de Polignac number, because 6166121001 - 2² = 6166120997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6166191001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134380 + ... + 2137266.

It is an arithmetic number, because the mean of its divisors is an integer number (516166464).

Almost surely, 2^6166121001 is an apocalyptic number.

It is an amenable number.

6166121001 is a deficient number, since it is larger than the sum of its proper divisors (2092542423).

6166121001 is a wasteful number, since it uses less digits than its factorization.

6166121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 6166121001 is about 78524.6521864312. The cubic root of 6166121001 is about 1833.7382651082.

Adding to 6166121001 its reverse (1001216616), we get a palindrome (7167337617).

The spelling of 6166121001 in words is "six billion, one hundred sixty-six million, one hundred twenty-one thousand, one".