20147249016 has 32 divisors (see below), whose sum is σ = 55964581200. Its totient is φ = 6715749600.

The previous prime is 20147249009. The next prime is 20147249033. The reversal of 20147249016 is 61094274102.

It is a happy number.

20147249016 is a `hidden beast` number, since 20 + 147 + 2 + 490 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46636935 + ... + 46637366.

Almost surely, 2^20147249016 is an apocalyptic number.

It is an amenable number.

20147249016 is an abundant number, since it is smaller than the sum of its proper divisors (35817332184).

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

20147249016 is a wasteful number, since it uses less digits than its factorization.

20147249016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93274316 (or 93274306 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20147249016 in words is "twenty billion, one hundred forty-seven million, two hundred forty-nine thousand, sixteen".