1201035956646 has 16 divisors (see below), whose sum is σ = 2412653730624. Its totient is φ = 398581682664.

The previous prime is 1201035956639. The next prime is 1201035956669. The reversal of 1201035956646 is 6466595301021.

It is a junction number, because it is equal to n+sod(n) for n = 1201035956595 and 1201035956604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440907580 + ... + 440910303.

It is an arithmetic number, because the mean of its divisors is an integer number (150790858164).

Almost surely, 2^{1201035956646} is an apocalyptic number.

1201035956646 is an abundant number, since it is smaller than the sum of its proper divisors (1211617773978).

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

1201035956646 is a wasteful number, since it uses less digits than its factorization.

1201035956646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881818115.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 1201035956646 in words is "one trillion, two hundred one billion, thirty-five million, nine hundred fifty-six thousand, six hundred forty-six".