140521223395908 has 120 divisors (see below), whose sum is σ = 371039084295264. Its totient is φ = 46370650608000.

The previous prime is 140521223395829. The next prime is 140521223395909. The reversal of 140521223395908 is 809593322125041.

140521223395908 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 2 + 12 + 2 + 3 + 39 + 590 + 8 = 666.

It is a super-2 number, since 2×140521223395908² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (140521223395909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48906528 + ... + 51700008.

Almost surely, 2^{140521223395908} is an apocalyptic number.

140521223395908 is a gapful number since it is divisible by the number (18) 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 140521223395908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185519542147632).

140521223395908 is an abundant number, since it is smaller than the sum of its proper divisors (230517860899356).

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

140521223395908 is a wasteful number, since it uses less digits than its factorization.

140521223395908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795055 (or 2795044 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 140521223395908 in words is "one hundred forty trillion, five hundred twenty-one billion, two hundred twenty-three million, three hundred ninety-five thousand, nine hundred eight".