155130444565061 has 64 divisors (see below), whose sum is σ = 192864976128000. Its totient is φ = 121742444759040.

The previous prime is 155130444565049. The next prime is 155130444565139. The reversal of 155130444565061 is 160565444031551.

It is a de Polignac number, because none of the positive numbers 2^k-155130444565061 is a prime.

It is a super-3 number, since 3×155130444565061³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155130444565361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1253649185 + ... + 1253772921.

It is an arithmetic number, because the mean of its divisors is an integer number (3013515252000).

Almost surely, 2^{155130444565061} is an apocalyptic number.

It is an amenable number.

155130444565061 is a deficient number, since it is larger than the sum of its proper divisors (37734531562939).

155130444565061 is a wasteful number, since it uses less digits than its factorization.

155130444565061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124794.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 155130444565061 in words is "one hundred fifty-five trillion, one hundred thirty billion, four hundred forty-four million, five hundred sixty-five thousand, sixty-one".