2151760061 has 12 divisors (see below), whose sum is σ = 2366320572. Its totient is φ = 1955184000.

The previous prime is 2151760027. The next prime is 2151760081. The reversal of 2151760061 is 1600671512.

It can be written as a sum of positive squares in 2 ways, for example, as 1141155961 + 1010604100 = 33781^2 + 31790^2 .

It is not a de Polignac number, because 2151760061 - 2³⁰ = 1078018237 is a prime.

It is a super-2 number, since 2×2151760061² = 9260142720229447442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151760081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386981 + ... + 392501.

It is an arithmetic number, because the mean of its divisors is an integer number (197193381).

Almost surely, 2^2151760061 is an apocalyptic number.

It is an amenable number.

2151760061 is a deficient number, since it is larger than the sum of its proper divisors (214560511).

2151760061 is a wasteful number, since it uses less digits than its factorization.

2151760061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8764 (or 8753 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2151760061 is about 46387.0678206761. The cubic root of 2151760061 is about 1291.0149776974.

The spelling of 2151760061 in words is "two billion, one hundred fifty-one million, seven hundred sixty thousand, sixty-one".