155615056039 has 8 divisors (see below), whose sum is σ = 156146060672. Its totient is φ = 155084267520.

The previous prime is 155615055997. The next prime is 155615056043. The reversal of 155615056039 is 930650516551.

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

It is a cyclic number.

It is not a de Polignac number, because 155615056039 - 2²³ = 155606667431 is a prime.

It is a super-2 number, since 2×155615056039² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155615056039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155615056139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1460647 + ... + 1563559.

It is an arithmetic number, because the mean of its divisors is an integer number (19518257584).

Almost surely, 2^155615056039 is an apocalyptic number.

155615056039 is a deficient number, since it is larger than the sum of its proper divisors (531004633).

155615056039 is a wasteful number, since it uses less digits than its factorization.

155615056039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108057.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 155615056039 in words is "one hundred fifty-five billion, six hundred fifteen million, fifty-six thousand, thirty-nine".