1202001955663 has 16 divisors (see below), whose sum is σ = 1213235960832. Its totient is φ = 1190826000000.

The previous prime is 1202001955619. The next prime is 1202001955703. The reversal of 1202001955663 is 3665591002021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202001955663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202001955603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103321095 + ... + 103332727.

It is an arithmetic number, because the mean of its divisors is an integer number (75827247552).

Almost surely, 2^{1202001955663} is an apocalyptic number.

1202001955663 is a deficient number, since it is larger than the sum of its proper divisors (11234005169).

1202001955663 is a wasteful number, since it uses less digits than its factorization.

1202001955663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046.

The product of its (nonzero) digits is 97200, while the sum is 40.

Adding to 1202001955663 its reverse (3665591002021), we get a palindrome (4867592957684).

The spelling of 1202001955663 in words is "one trillion, two hundred two billion, one million, nine hundred fifty-five thousand, six hundred sixty-three".