155365634545 has 32 divisors (see below), whose sum is σ = 205988106240. Its totient is φ = 111550530240.

The previous prime is 155365634461. The next prime is 155365634549. The reversal of 155365634545 is 545436563551.

It is not a de Polignac number, because 155365634545 - 2⁹ = 155365634033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155365634492 and 155365634501.

It is not an unprimeable number, because it can be changed into a prime (155365634549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6648672 + ... + 6671998.

It is an arithmetic number, because the mean of its divisors is an integer number (6437128320).

Almost surely, 2^155365634545 is an apocalyptic number.

It is an amenable number.

155365634545 is a deficient number, since it is larger than the sum of its proper divisors (50622471695).

155365634545 is a wasteful number, since it uses less digits than its factorization.

155365634545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24885.

The product of its digits is 16200000, while the sum is 52.

The spelling of 155365634545 in words is "one hundred fifty-five billion, three hundred sixty-five million, six hundred thirty-four thousand, five hundred forty-five".