154451506656 has 48 divisors (see below), whose sum is σ = 411486493824. Its totient is φ = 50715417984.

The previous prime is 154451506613. The next prime is 154451506717. The reversal of 154451506656 is 656605154451.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12000060 + ... + 12012923.

It is an arithmetic number, because the mean of its divisors is an integer number (8572635288).

Almost surely, 2^154451506656 is an apocalyptic number.

154451506656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

154451506656 is an abundant number, since it is smaller than the sum of its proper divisors (257034987168).

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

154451506656 is a wasteful number, since it uses less digits than its factorization.

154451506656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24013063 (or 24013055 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 154451506656 in words is "one hundred fifty-four billion, four hundred fifty-one million, five hundred six thousand, six hundred fifty-six".