20147640714 has 48 divisors (see below), whose sum is σ = 45083450880. Its totient is φ = 6496057440.

The previous prime is 20147640613. The next prime is 20147640731. The reversal of 20147640714 is 41704674102.

It is a happy number.

20147640714 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 7 + 640 + 7 + 1 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1307547 + ... + 1322865.

It is an arithmetic number, because the mean of its divisors is an integer number (939238560).

Almost surely, 2^20147640714 is an apocalyptic number.

20147640714 is an abundant number, since it is smaller than the sum of its proper divisors (24935810166).

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

20147640714 is a wasteful number, since it uses less digits than its factorization.

20147640714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17715 (or 17712 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 20147640714 in words is "twenty billion, one hundred forty-seven million, six hundred forty thousand, seven hundred fourteen".