155616061115 has 8 divisors (see below), whose sum is σ = 186744516288. Its totient is φ = 124489353600.

The previous prime is 155616061039. The next prime is 155616061127. The reversal of 155616061115 is 511160616551.

It is a happy number.

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

It is not a de Polignac number, because 155616061115 - 2¹⁰ = 155616060091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232307 + ... + 604316.

It is an arithmetic number, because the mean of its divisors is an integer number (23343064536).

Almost surely, 2^155616061115 is an apocalyptic number.

155616061115 is a deficient number, since it is larger than the sum of its proper divisors (31128455173).

155616061115 is an equidigital number, since it uses as much as digits as its factorization.

155616061115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873829.

The product of its (nonzero) digits is 27000, while the sum is 38.

Adding to 155616061115 its reverse (511160616551), we get a palindrome (666776677666).

The spelling of 155616061115 in words is "one hundred fifty-five billion, six hundred sixteen million, sixty-one thousand, one hundred fifteen".