155534165097 has 16 divisors (see below), whose sum is σ = 209560274112. Its totient is φ = 102599193600.

The previous prime is 155534165047. The next prime is 155534165131. The reversal of 155534165097 is 790561435551.

It is a happy number.

It is not a de Polignac number, because 155534165097 - 2¹¹ = 155534163049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155534165047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416933 + ... + 1522749.

It is an arithmetic number, because the mean of its divisors is an integer number (13097517132).

Almost surely, 2^155534165097 is an apocalyptic number.

It is an amenable number.

155534165097 is a deficient number, since it is larger than the sum of its proper divisors (54026109015).

155534165097 is a wasteful number, since it uses less digits than its factorization.

155534165097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110968.

The product of its (nonzero) digits is 2835000, while the sum is 51.

The spelling of 155534165097 in words is "one hundred fifty-five billion, five hundred thirty-four million, one hundred sixty-five thousand, ninety-seven".