1202001955664 has 20 divisors (see below), whose sum is σ = 2465871659604. Its totient is φ = 565647979008.

The previous prime is 1202001955619. The next prime is 1202001955703. The reversal of 1202001955664 is 4665591002021.

It can be written as a sum of positive squares in 2 ways, for example, as 891151104064 + 310850851600 = 944008^2 + 557540^2 .

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, 2209562147 + ... + 2209562690.

Almost surely, 2^{1202001955664} is an apocalyptic number.

It is an amenable number.

1202001955664 is an abundant number, since it is smaller than the sum of its proper divisors (1263869703940).

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

1202001955664 is a wasteful number, since it uses less digits than its factorization.

1202001955664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419124862 (or 4419124856 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

Adding to 1202001955664 its reverse (4665591002021), we get a palindrome (5867592957685).

The spelling of 1202001955664 in words is "one trillion, two hundred two billion, one million, nine hundred fifty-five thousand, six hundred sixty-four".