142454366640 has 240 divisors, whose sum is σ = 486255583008. Its totient is φ = 37367599104.

The previous prime is 142454366623. The next prime is 142454366741. The reversal of 142454366640 is 46663454241.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20862907 + ... + 20869733.

Almost surely, 2^142454366640 is an apocalyptic number.

142454366640 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 142454366640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243127791504).

142454366640 is an abundant number, since it is smaller than the sum of its proper divisors (343801216368).

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

142454366640 is a wasteful number, since it uses less digits than its factorization.

142454366640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316 (or 7307 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 142454366640 in words is "one hundred forty-two billion, four hundred fifty-four million, three hundred sixty-six thousand, six hundred forty".