1651016481066 has 16 divisors (see below), whose sum is σ = 3668925513600. Its totient is φ = 550338827004.

The previous prime is 1651016481043. The next prime is 1651016481067. The reversal of 1651016481066 is 6601846101561.

1651016481066 is a `hidden beast` number, since 1 + 6 + 5 + 101 + 6 + 481 + 0 + 66 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1651016481067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15287189586 + ... + 15287189693.

It is an arithmetic number, because the mean of its divisors is an integer number (229307844600).

Almost surely, 2^{1651016481066} is an apocalyptic number.

1651016481066 is an abundant number, since it is smaller than the sum of its proper divisors (2017909032534).

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

1651016481066 is a wasteful number, since it uses less digits than its factorization.

1651016481066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30574379290 (or 30574379284 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 1651016481066 in words is "one trillion, six hundred fifty-one billion, sixteen million, four hundred eighty-one thousand, sixty-six".