140806814668 has 36 divisors (see below), whose sum is σ = 281894748352. Its totient is φ = 61164944640.

The previous prime is 140806814633. The next prime is 140806814689. The reversal of 140806814668 is 866418608041.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4669788 + ... + 4699843.

Almost surely, 2^140806814668 is an apocalyptic number.

It is an amenable number.

140806814668 is an abundant number, since it is smaller than the sum of its proper divisors (141087933684).

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

140806814668 is a wasteful number, since it uses less digits than its factorization.

140806814668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369682 (or 9369663 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 140806814668 in words is "one hundred forty billion, eight hundred six million, eight hundred fourteen thousand, six hundred sixty-eight".