51142167466 has 16 divisors (see below), whose sum is σ = 82670115528. Its totient is φ = 23588121600.

The previous prime is 51142167457. The next prime is 51142167533. The reversal of 51142167466 is 66476124115.

It can be written as a sum of positive squares in 4 ways, for example, as 44156718225 + 6985449241 = 210135^2 + 83579^2 .

It is a super-2 number, since 2×51142167466² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625575 + ... + 702586.

Almost surely, 2^51142167466 is an apocalyptic number.

51142167466 is a deficient number, since it is larger than the sum of its proper divisors (31527948062).

51142167466 is a wasteful number, since it uses less digits than its factorization.

51142167466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329657.

The product of its digits is 241920, while the sum is 43.

The spelling of 51142167466 in words is "fifty-one billion, one hundred forty-two million, one hundred sixty-seven thousand, four hundred sixty-six".