1200495057156 has 36 divisors (see below), whose sum is σ = 3072997200000. Its totient is φ = 395099638128.

The previous prime is 1200495057121. The next prime is 1200495057161. The reversal of 1200495057156 is 6517505940021.

It is a happy number.

1200495057156 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 495 + 0 + 5 + 7 + 156 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211054656 + ... + 211060343.

Almost surely, 2^{1200495057156} is an apocalyptic number.

It is an amenable number.

1200495057156 is an abundant number, since it is smaller than the sum of its proper divisors (1872502142844).

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

1200495057156 is a wasteful number, since it uses less digits than its factorization.

1200495057156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422115088 (or 422115083 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 1200495057156 in words is "one trillion, two hundred billion, four hundred ninety-five million, fifty-seven thousand, one hundred fifty-six".