20742607008 has 120 divisors (see below), whose sum is σ = 62301742272. Its totient is φ = 6767051904.

The previous prime is 20742607003. The next prime is 20742607013. The reversal of 20742607008 is 80070624702.

20742607008 is a `hidden beast` number, since 2 + 0 + 7 + 42 + 607 + 0 + 0 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (20742607003) and next prime (20742607013).

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

It is not an unprimeable number, because it can be changed into a prime (20742607003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36691 + ... + 206957.

Almost surely, 2^20742607008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20742607008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31150871136).

20742607008 is an abundant number, since it is smaller than the sum of its proper divisors (41559135264).

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

20742607008 is a wasteful number, since it uses less digits than its factorization.

20742607008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170336 (or 170319 counting only the distinct ones).

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

The spelling of 20742607008 in words is "twenty billion, seven hundred forty-two million, six hundred seven thousand, eight".