143640621041604 has 96 divisors (see below), whose sum is σ = 340330769114112. Its totient is φ = 47149074000000.

The previous prime is 143640621041591. The next prime is 143640621041609. The reversal of 143640621041604 is 406140126046341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143640621041609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95216934 + ... + 96713730.

It is an arithmetic number, because the mean of its divisors is an integer number (3545112178272).

Almost surely, 2^{143640621041604} is an apocalyptic number.

It is an amenable number.

143640621041604 is an abundant number, since it is smaller than the sum of its proper divisors (196690148072508).

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

143640621041604 is a wasteful number, since it uses less digits than its factorization.

143640621041604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497417 (or 1497415 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

Adding to 143640621041604 its reverse (406140126046341), we get a palindrome (549780747087945).

The spelling of 143640621041604 in words is "one hundred forty-three trillion, six hundred forty billion, six hundred twenty-one million, forty-one thousand, six hundred four".