201557755102 has 32 divisors (see below), whose sum is σ = 331451844480. Its totient is φ = 91164802080.

The previous prime is 201557755099. The next prime is 201557755103.

It is a happy number.

201557755102 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201557755103) 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, 10322833 + ... + 10342339.

It is an arithmetic number, because the mean of its divisors is an integer number (10357870140).

Almost surely, 2^201557755102 is an apocalyptic number.

201557755102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201557755102 is a deficient number, since it is larger than the sum of its proper divisors (129894089378).

201557755102 is a wasteful number, since it uses less digits than its factorization.

201557755102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21816.

The product of its (nonzero) digits is 122500, while the sum is 40.

It can be divided in two parts, 201557 and 755102, that added together give a palindrome (956659).

The spelling of 201557755102 in words is "two hundred one billion, five hundred fifty-seven million, seven hundred fifty-five thousand, one hundred two".