155672135515 has 8 divisors (see below), whose sum is σ = 201176298288. Its totient is φ = 114957884640.

The previous prime is 155672135447. The next prime is 155672135533. The reversal of 155672135515 is 515531276551.

It is a happy number.

155672135515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155672135515 - 2²³ = 155663746907 is a prime.

It is a super-3 number, since 3×155672135515³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197477901 + ... + 1197478030.

It is an arithmetic number, because the mean of its divisors is an integer number (25147037286).

Almost surely, 2^155672135515 is an apocalyptic number.

155672135515 is a deficient number, since it is larger than the sum of its proper divisors (45504162773).

155672135515 is a wasteful number, since it uses less digits than its factorization.

155672135515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394955949.

The product of its digits is 787500, while the sum is 46.

The spelling of 155672135515 in words is "one hundred fifty-five billion, six hundred seventy-two million, one hundred thirty-five thousand, five hundred fifteen".