101623455155 has 4 divisors (see below), whose sum is σ = 121948146192. Its totient is φ = 81298764120.

The previous prime is 101623455121. The next prime is 101623455169. The reversal of 101623455155 is 551554326101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101623455155 - 2⁸ = 101623454899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10162345511 + ... + 10162345520.

It is an arithmetic number, because the mean of its divisors is an integer number (30487036548).

Almost surely, 2^101623455155 is an apocalyptic number.

101623455155 is a deficient number, since it is larger than the sum of its proper divisors (20324691037).

101623455155 is an equidigital number, since it uses as much as digits as its factorization.

101623455155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20324691036.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 101623455155 in words is "one hundred one billion, six hundred twenty-three million, four hundred fifty-five thousand, one hundred fifty-five".