149551155225 has 24 divisors (see below), whose sum is σ = 274731012320. Its totient is φ = 79760615760.

The previous prime is 149551155217. The next prime is 149551155241. The reversal of 149551155225 is 522551155941.

149551155225 is a `hidden beast` number, since 1 + 4 + 9 + 5 + 5 + 115 + 522 + 5 = 666.

It is not a de Polignac number, because 149551155225 - 2³ = 149551155217 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110777959 + ... + 110779308.

Almost surely, 2^149551155225 is an apocalyptic number.

149551155225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149551155225 is a deficient number, since it is larger than the sum of its proper divisors (125179857095).

149551155225 is a wasteful number, since it uses less digits than its factorization.

149551155225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221557286 (or 221557275 counting only the distinct ones).

The product of its digits is 450000, while the sum is 45.

The spelling of 149551155225 in words is "one hundred forty-nine billion, five hundred fifty-one million, one hundred fifty-five thousand, two hundred twenty-five".