155541356106660 has 72 divisors (see below), whose sum is σ = 471839304690936. Its totient is φ = 41475011489280.

The previous prime is 155541356106659. The next prime is 155541356106673. The reversal of 155541356106660 is 66601653145551.

It can be written as a sum of positive squares in 4 ways, for example, as 850497106176 + 154690859000484 = 922224^2 + 12437478^2 .

It is a super-2 number, since 2×155541356106660² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155541356106597 and 155541356106606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25162129 + ... + 30728088.

It is an arithmetic number, because the mean of its divisors is an integer number (6553323676263).

Almost surely, 2^{155541356106660} is an apocalyptic number.

155541356106660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155541356106660 is an abundant number, since it is smaller than the sum of its proper divisors (316297948584276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155541356106660 is a wasteful number, since it uses less digits than its factorization.

155541356106660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55905693 (or 55905688 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 155541356106660 in words is "one hundred fifty-five trillion, five hundred forty-one billion, three hundred fifty-six million, one hundred six thousand, six hundred sixty".