140668007472 has 120 divisors (see below), whose sum is σ = 397374545568. Its totient is φ = 46450713600.

The previous prime is 140668007461. The next prime is 140668007477. The reversal of 140668007472 is 274700866041.

140668007472 is a `hidden beast` number, since 1 + 40 + 66 + 80 + 0 + 7 + 472 = 666.

It is a super-2 number, since 2×140668007472² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (140668007477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6844572 + ... + 6865092.

Almost surely, 2^140668007472 is an apocalyptic number.

140668007472 is a gapful number since it is divisible by the number (12) 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 140668007472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198687272784).

140668007472 is an abundant number, since it is smaller than the sum of its proper divisors (256706538096).

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

140668007472 is a wasteful number, since it uses less digits than its factorization.

140668007472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979 (or 20970 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 140668007472 in words is "one hundred forty billion, six hundred sixty-eight million, seven thousand, four hundred seventy-two".