140661333450 has 144 divisors (see below), whose sum is σ = 430190519616. Its totient is φ = 32617094400.

The previous prime is 140661333433. The next prime is 140661333487. The reversal of 140661333450 is 54333166041.

140661333450 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 613 + 3 + 34 + 5 + 0 = 666.

It is a super-2 number, since 2×140661333450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 503899 + ... + 731598.

It is an arithmetic number, because the mean of its divisors is an integer number (2987434164).

Almost surely, 2^140661333450 is an apocalyptic number.

140661333450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140661333450 is an abundant number, since it is smaller than the sum of its proper divisors (289529186166).

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

140661333450 is a wasteful number, since it uses less digits than its factorization.

140661333450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235549 (or 1235541 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 140661333450 its reverse (54333166041), we get a palindrome (194994499491).

The spelling of 140661333450 in words is "one hundred forty billion, six hundred sixty-one million, three hundred thirty-three thousand, four hundred fifty".