154066466640 has 160 divisors (see below), whose sum is σ = 482717854080. Its totient is φ = 40645711872.

The previous prime is 154066466599. The next prime is 154066466677. The reversal of 154066466640 is 46664660451.

It is a super-2 number, since 2×154066466640² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 154066466640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21285102 + ... + 21292338.

It is an arithmetic number, because the mean of its divisors is an integer number (3016986588).

Almost surely, 2^154066466640 is an apocalyptic number.

154066466640 is a gapful number since it is divisible by the number (10) 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 154066466640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241358927040).

154066466640 is an abundant number, since it is smaller than the sum of its proper divisors (328651387440).

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

154066466640 is a wasteful number, since it uses less digits than its factorization.

154066466640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189 (or 8183 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 154066466640 in words is "one hundred fifty-four billion, sixty-six million, four hundred sixty-six thousand, six hundred forty".