73435505155 has 4 divisors (see below), whose sum is σ = 88122606192. Its totient is φ = 58748404120.

The previous prime is 73435505141. The next prime is 73435505189. The reversal of 73435505155 is 55150553437.

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

It is not a de Polignac number, because 73435505155 - 2⁷ = 73435505027 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7343550511 + ... + 7343550520.

It is an arithmetic number, because the mean of its divisors is an integer number (22030651548).

Almost surely, 2^73435505155 is an apocalyptic number.

73435505155 is a deficient number, since it is larger than the sum of its proper divisors (14687101037).

73435505155 is a wasteful number, since it uses less digits than its factorization.

73435505155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14687101036.

The product of its (nonzero) digits is 787500, while the sum is 43.

The spelling of 73435505155 in words is "seventy-three billion, four hundred thirty-five million, five hundred five thousand, one hundred fifty-five".