142521043155640 has 64 divisors (see below), whose sum is σ = 321632239219200. Its totient is φ = 56838023180928.

The previous prime is 142521043155613. The next prime is 142521043155641. The reversal of 142521043155640 is 46551340125241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142521043155641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14041717 + ... + 21959323.

It is an arithmetic number, because the mean of its divisors is an integer number (5025503737800).

Almost surely, 2^{142521043155640} is an apocalyptic number.

142521043155640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142521043155640 is an abundant number, since it is smaller than the sum of its proper divisors (179111196063560).

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

142521043155640 is a wasteful number, since it uses less digits than its factorization.

142521043155640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7918964 (or 7918960 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 142521043155640 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred fifty-five thousand, six hundred forty".