141656221840 has 80 divisors (see below), whose sum is σ = 376592646528. Its totient is φ = 48543095808.

The previous prime is 141656221813. The next prime is 141656221879. The reversal of 141656221840 is 48122656141.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 141656221793 and 141656221802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052619 + ... + 1179541.

Almost surely, 2^141656221840 is an apocalyptic number.

141656221840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141656221840 is an abundant number, since it is smaller than the sum of its proper divisors (234936424688).

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

141656221840 is a wasteful number, since it uses less digits than its factorization.

141656221840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128936 (or 128930 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

Adding to 141656221840 its reverse (48122656141), we get a palindrome (189778877981).

The spelling of 141656221840 in words is "one hundred forty-one billion, six hundred fifty-six million, two hundred twenty-one thousand, eight hundred forty".