6451121166102 has 12 divisors (see below), whose sum is σ = 13977429193260. Its totient is φ = 2150373722028.

The previous prime is 6451121166059. The next prime is 6451121166131. The reversal of 6451121166102 is 2016611211546.

6451121166102 is a `hidden beast` number, since 6 + 4 + 5 + 1 + 1 + 21 + 16 + 610 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179197810152 + ... + 179197810187.

It is an arithmetic number, because the mean of its divisors is an integer number (1164785766105).

Almost surely, 2^{6451121166102} is an apocalyptic number.

6451121166102 is an abundant number, since it is smaller than the sum of its proper divisors (7526308027158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6451121166102 is a wasteful number, since it uses less digits than its factorization.

6451121166102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358395620347 (or 358395620344 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 6451121166102 its reverse (2016611211546), we get a palindrome (8467732377648).

The spelling of 6451121166102 in words is "six trillion, four hundred fifty-one billion, one hundred twenty-one million, one hundred sixty-six thousand, one hundred two".