142563401640 has 192 divisors, whose sum is σ = 507280700160. Its totient is φ = 34435791360.

The previous prime is 142563401621. The next prime is 142563401647. The reversal of 142563401640 is 46104365241.

142563401640 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 6 + 3 + 4 + 0 + 1 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142563401595 and 142563401604.

It is not an unprimeable number, because it can be changed into a prime (142563401647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1031937 + ... + 1161903.

It is an arithmetic number, because the mean of its divisors is an integer number (2642086980).

Almost surely, 2^142563401640 is an apocalyptic number.

142563401640 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 142563401640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253640350080).

142563401640 is an abundant number, since it is smaller than the sum of its proper divisors (364717298520).

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

142563401640 is a wasteful number, since it uses less digits than its factorization.

142563401640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130272 (or 130265 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 142563401640 its reverse (46104365241), we get a palindrome (188667766881).

The spelling of 142563401640 in words is "one hundred forty-two billion, five hundred sixty-three million, four hundred one thousand, six hundred forty".