1801548661002 has 16 divisors (see below), whose sum is σ = 3603148168320. Its totient is φ = 600507745952.

The previous prime is 1801548660991. The next prime is 1801548661069. The reversal of 1801548661002 is 2001668451081.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1650018 + ... + 2515085.

It is an arithmetic number, because the mean of its divisors is an integer number (225196760520).

Almost surely, 2^{1801548661002} is an apocalyptic number.

1801548661002 is an abundant number, since it is smaller than the sum of its proper divisors (1801599507318).

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

1801548661002 is a wasteful number, since it uses less digits than its factorization.

1801548661002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237197.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 1801548661002 in words is "one trillion, eight hundred one billion, five hundred forty-eight million, six hundred sixty-one thousand, two".