155225340455 has 16 divisors (see below), whose sum is σ = 186537375360. Its totient is φ = 124002402048.

The previous prime is 155225340451. The next prime is 155225340499. The reversal of 155225340455 is 554043522551.

It is a cyclic number.

It is not a de Polignac number, because 155225340455 - 2² = 155225340451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155225340451) 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, 17668994 + ... + 17677776.

It is an arithmetic number, because the mean of its divisors is an integer number (11658585960).

Almost surely, 2^155225340455 is an apocalyptic number.

155225340455 is a deficient number, since it is larger than the sum of its proper divisors (31312034905).

155225340455 is an equidigital number, since it uses as much as digits as its factorization.

155225340455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13450.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 155225340455 in words is "one hundred fifty-five billion, two hundred twenty-five million, three hundred forty thousand, four hundred fifty-five".