155445556061 has 8 divisors (see below), whose sum is σ = 155723873760. Its totient is φ = 155167486672.

The previous prime is 155445556027. The next prime is 155445556069. The reversal of 155445556061 is 160655544551.

155445556061 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 a cyclic number.

It is not a de Polignac number, because 155445556061 - 2¹⁸ = 155445293917 is a prime.

It is a super-2 number, since 2×155445556061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155445555997 and 155445556015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155445556069) by changing a digit.

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, 1214426 + ... + 1336308.

It is an arithmetic number, because the mean of its divisors is an integer number (19465484220).

Almost surely, 2^155445556061 is an apocalyptic number.

It is an amenable number.

155445556061 is a deficient number, since it is larger than the sum of its proper divisors (278317699).

155445556061 is a wasteful number, since it uses less digits than its factorization.

155445556061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124155.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 155445556061 in words is "one hundred fifty-five billion, four hundred forty-five million, five hundred fifty-six thousand, sixty-one".