140669476450 has 12 divisors (see below), whose sum is σ = 261645226290. Its totient is φ = 56267790560.

The previous prime is 140669476447. The next prime is 140669476517. The reversal of 140669476450 is 54674966041.

It can be written as a sum of positive squares in 3 ways, for example, as 53343907369 + 87325569081 = 230963^2 + 295509^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1406694715 + ... + 1406694814.

Almost surely, 2^140669476450 is an apocalyptic number.

140669476450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140669476450 is a deficient number, since it is larger than the sum of its proper divisors (120975749840).

140669476450 is a wasteful number, since it uses less digits than its factorization.

140669476450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813389541 (or 2813389536 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 140669476450 in words is "one hundred forty billion, six hundred sixty-nine million, four hundred seventy-six thousand, four hundred fifty".