20150606673 has 6 divisors (see below), whose sum is σ = 29106431874. Its totient is φ = 13433737776.

The previous prime is 20150606647. The next prime is 20150606677. The reversal of 20150606673 is 37660605102.

20150606673 is a `hidden beast` number, since 20 + 1 + 506 + 0 + 66 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14536401489 + 5614205184 = 120567^2 + 74928^2 .

It is not a de Polignac number, because 20150606673 - 2⁸ = 20150606417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20150606677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1119478140 + ... + 1119478157.

It is an arithmetic number, because the mean of its divisors is an integer number (4851071979).

Almost surely, 2^20150606673 is an apocalyptic number.

It is an amenable number.

20150606673 is a deficient number, since it is larger than the sum of its proper divisors (8955825201).

20150606673 is a wasteful number, since it uses less digits than its factorization.

20150606673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238956303 (or 2238956300 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 20150606673 in words is "twenty billion, one hundred fifty million, six hundred six thousand, six hundred seventy-three".