20160876121 has 9 divisors (see below), whose sum is σ = 20366404149. Its totient is φ = 19957405884.

The previous prime is 20160876119. The next prime is 20160876137. The reversal of 20160876121 is 12167806102.

The square root of 20160876121 is 141989.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 20160876121 - 2¹ = 20160876119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20160876221) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15192160 + ... + 15193486.

Almost surely, 2^20160876121 is an apocalyptic number.

20160876121 is the 141989-th square number.

20160876121 is the 70995-th centered octagonal number.

It is an amenable number.

20160876121 is a deficient number, since it is larger than the sum of its proper divisors (205528028).

20160876121 is an frugal number, since it uses more digits than its factorization.

20160876121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868 (or 1434 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

It can be divided in two parts, 201608 and 76121, that added together give a square (277729 = 527²).

The spelling of 20160876121 in words is "twenty billion, one hundred sixty million, eight hundred seventy-six thousand, one hundred twenty-one".