1201155262653 has 16 divisors (see below), whose sum is σ = 1613044634432. Its totient is φ = 795038112000.

The previous prime is 1201155262591. The next prime is 1201155262673. The reversal of 1201155262653 is 3562625511021.

It is not a de Polignac number, because 1201155262653 - 2⁸ = 1201155262397 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 (1201155262673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2270278 + ... + 2748903.

It is an arithmetic number, because the mean of its divisors is an integer number (100815289652).

Almost surely, 2^{1201155262653} is an apocalyptic number.

It is an amenable number.

1201155262653 is a deficient number, since it is larger than the sum of its proper divisors (411889371779).

1201155262653 is a wasteful number, since it uses less digits than its factorization.

1201155262653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019756.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 1201155262653 in words is "one trillion, two hundred one billion, one hundred fifty-five million, two hundred sixty-two thousand, six hundred fifty-three".