20028702151 has 16 divisors (see below), whose sum is σ = 21236811264. Its totient is φ = 18849387744.

The previous prime is 20028702103. The next prime is 20028702181. The reversal of 20028702151 is 15120782002.

It is a cyclic number.

It is not a de Polignac number, because 20028702151 - 2¹³ = 20028693959 is a prime.

It is a super-2 number, since 2×20028702151² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20028702181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1359541 + ... + 1374193.

It is an arithmetic number, because the mean of its divisors is an integer number (1327300704).

Almost surely, 2^20028702151 is an apocalyptic number.

20028702151 is a deficient number, since it is larger than the sum of its proper divisors (1208109113).

20028702151 is a wasteful number, since it uses less digits than its factorization.

20028702151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15630.

The product of its (nonzero) digits is 2240, while the sum is 28.

The spelling of 20028702151 in words is "twenty billion, twenty-eight million, seven hundred two thousand, one hundred fifty-one".