155140235555 has 16 divisors (see below), whose sum is σ = 192600936000. Its totient is φ = 119824333440.

The previous prime is 155140235533. The next prime is 155140235557. The reversal of 155140235555 is 555532041551.

It is not a de Polignac number, because 155140235555 - 2¹⁶ = 155140170019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155140235557) 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, 2960885 + ... + 3012825.

It is an arithmetic number, because the mean of its divisors is an integer number (12037558500).

Almost surely, 2^155140235555 is an apocalyptic number.

155140235555 is a deficient number, since it is larger than the sum of its proper divisors (37460700445).

155140235555 is a wasteful number, since it uses less digits than its factorization.

155140235555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72574.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 155140235555 in words is "one hundred fifty-five billion, one hundred forty million, two hundred thirty-five thousand, five hundred fifty-five".