153244143440 has 20 divisors (see below), whose sum is σ = 356292633684. Its totient is φ = 61297657344.

The previous prime is 153244143439. The next prime is 153244143467. The reversal of 153244143440 is 44341442351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38992031296 + 114252112144 = 197464^2 + 338012^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 153244143440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957775817 + ... + 957775976.

Almost surely, 2^153244143440 is an apocalyptic number.

153244143440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153244143440 is an abundant number, since it is smaller than the sum of its proper divisors (203048490244).

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

153244143440 is a wasteful number, since it uses less digits than its factorization.

153244143440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915551806 (or 1915551800 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 153244143440 its reverse (44341442351), we get a palindrome (197585585791).

The spelling of 153244143440 in words is "one hundred fifty-three billion, two hundred forty-four million, one hundred forty-three thousand, four hundred forty".