1201550390004 has 12 divisors (see below), whose sum is σ = 2803617576704. Its totient is φ = 400516796664.

The previous prime is 1201550389987. The next prime is 1201550390057. The reversal of 1201550390004 is 4000930551021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50064599572 + ... + 50064599595.

Almost surely, 2^{1201550390004} is an apocalyptic number.

It is an amenable number.

1201550390004 is an abundant number, since it is smaller than the sum of its proper divisors (1602067186700).

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

1201550390004 is a wasteful number, since it uses less digits than its factorization.

1201550390004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100129199174 (or 100129199172 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 1201550390004 in words is "one trillion, two hundred one billion, five hundred fifty million, three hundred ninety thousand, four".