155084649309 has 12 divisors (see below), whose sum is σ = 224057727036. Its totient is φ = 103368273792.

The previous prime is 155084649301. The next prime is 155084649311. The reversal of 155084649309 is 903946480551.

155084649309 is a `hidden beast` number, since 1 + 5 + 508 + 46 + 4 + 93 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51609843684 + 103474805625 = 227178^2 + 321675^2 .

It is not a de Polignac number, because 155084649309 - 2³ = 155084649301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155084649301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1745274 + ... + 1831979.

It is an arithmetic number, because the mean of its divisors is an integer number (18671477253).

Almost surely, 2^155084649309 is an apocalyptic number.

It is an amenable number.

155084649309 is a deficient number, since it is larger than the sum of its proper divisors (68973077727).

155084649309 is a wasteful number, since it uses less digits than its factorization.

155084649309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582076 (or 3582073 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 155084649309 in words is "one hundred fifty-five billion, eighty-four million, six hundred forty-nine thousand, three hundred nine".