101511553155 has 16 divisors (see below), whose sum is σ = 162422475264. Its totient is φ = 54138164960.

The previous prime is 101511553139. The next prime is 101511553201. The reversal of 101511553155 is 551355115101.

It is a happy number.

It is not a de Polignac number, because 101511553155 - 2⁴ = 101511553139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020022 + ... + 1115108.

It is an arithmetic number, because the mean of its divisors is an integer number (10151404704).

Almost surely, 2^101511553155 is an apocalyptic number.

101511553155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101511553155 is a deficient number, since it is larger than the sum of its proper divisors (60910922109).

101511553155 is an equidigital number, since it uses as much as digits as its factorization.

101511553155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166266.

The product of its (nonzero) digits is 9375, while the sum is 33.

Adding to 101511553155 its reverse (551355115101), we get a palindrome (652866668256).

The spelling of 101511553155 in words is "one hundred one billion, five hundred eleven million, five hundred fifty-three thousand, one hundred fifty-five".