154557849132 has 72 divisors (see below), whose sum is σ = 408096299520. Its totient is φ = 49228307040.

The previous prime is 154557849107. The next prime is 154557849133. The reversal of 154557849132 is 231948755451.

154557849132 is a `hidden beast` number, since 1 + 5 + 4 + 55 + 78 + 491 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (154557849133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707869 + ... + 900107.

It is an arithmetic number, because the mean of its divisors is an integer number (5668004160).

Almost surely, 2^154557849132 is an apocalyptic number.

154557849132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154557849132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204048149760).

154557849132 is an abundant number, since it is smaller than the sum of its proper divisors (253538450388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154557849132 is a wasteful number, since it uses less digits than its factorization.

154557849132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193243 (or 193238 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The spelling of 154557849132 in words is "one hundred fifty-four billion, five hundred fifty-seven million, eight hundred forty-nine thousand, one hundred thirty-two".