155516061 has 8 divisors (see below), whose sum is σ = 210195520. Its totient is φ = 102256992.

The previous prime is 155516059. The next prime is 155516093. The reversal of 155516061 is 160615551.

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

It is not a de Polignac number, because 155516061 - 2¹ = 155516059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155516461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354841 + ... + 355278.

It is an arithmetic number, because the mean of its divisors is an integer number (26274440).

Almost surely, 2^155516061 is an apocalyptic number.

It is an amenable number.

155516061 is a deficient number, since it is larger than the sum of its proper divisors (54679459).

155516061 is an equidigital number, since it uses as much as digits as its factorization.

155516061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710195.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 155516061 is about 12470.6078841410. The cubic root of 155516061 is about 537.7640293599.

It can be divided in two parts, 15551 and 6061, that added together give a palindrome (21612).

The spelling of 155516061 in words is "one hundred fifty-five million, five hundred sixteen thousand, sixty-one".