154562131212456 has 128 divisors (see below), whose sum is σ = 425607732950400. Its totient is φ = 46384689761280.

The previous prime is 154562131212451. The next prime is 154562131212479. The reversal of 154562131212456 is 654212131265451.

It is not an unprimeable number, because it can be changed into a prime (154562131212451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57768990 + ... + 60385266.

It is an arithmetic number, because the mean of its divisors is an integer number (3325060413675).

Almost surely, 2^{154562131212456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154562131212456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212803866475200).

154562131212456 is an abundant number, since it is smaller than the sum of its proper divisors (271045601737944).

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

154562131212456 is a wasteful number, since it uses less digits than its factorization.

154562131212456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618459 (or 2618455 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The spelling of 154562131212456 in words is "one hundred fifty-four trillion, five hundred sixty-two billion, one hundred thirty-one million, two hundred twelve thousand, four hundred fifty-six".